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Showing content from https://docs.microsoft.com/en-us/windows/configuration/windows-diagnostic-data-1703 below:

Windows 10, version 1703 basic diagnostic events and fields (Windows 10) - Windows Privacy

Applies to

• Windows 10, version 1703

The Basic level gathers a limited set of information that is critical for understanding the device and its configuration including: basic device information, quality-related information, app compatibility, and Microsoft Store. When the level is set to Basic, it also includes the Security level information.

The Basic level helps to identify problems that can occur on a particular device hardware or software configuration. For example, it can help determine if crashes are more frequent on devices with a specific amount of memory or that are running a particular driver version. This helps Microsoft fix operating system or app problems.

Use this article to learn about diagnostic events, grouped by event area, and the fields within each event. A brief description is provided for each field. Every event generated includes common data, which collects device data.

You can learn more about Windows functional and diagnostic data through these articles:

• Required diagnostic events and fields for Windows 11, version 24H2
• Required diagnostic events and fields for Windows 11, versions 23H2 and 22H2
• Required diagnostic events and fields for Windows 11, version 21H2
• Required diagnostic events and fields for Windows 10, versions 22H2 and 21H2
• Windows 10, version 1903 and Windows 10, version 1909 basic diagnostic events and fields
• Windows 10, version 1809 basic diagnostic events and fields
• Windows 10, version 1803 basic diagnostic events and fields
• Windows 10, version 1709 basic diagnostic events and fields
• Manage connections from Windows operating system components to Microsoft services
• Configure Windows diagnostic data in your organization

This event lists the types of objects and how many of each exist on the client device. This allows for a quick way to ensure that the records present on the server match what is present on the client. The data collected with this event is used to help keep Windows up to date.

The following fields are available:

• DatasourceApplicationFile_RS3 The total number of objects of this type present on this device.
• DatasourceDevicePnp_RS3 The total number of objects of this type present on this device.
• DatasourceDriverPackage_RS3 The total number of objects of this type present on this device.
• DataSourceMatchingInfoBlock_RS3 The total number of objects of this type present on this device.
• DataSourceMatchingInfoPassive_RS3 The total number of objects of this type present on this device.
• DataSourceMatchingInfoPostUpgrade_RS3 The total number of objects of this type present on this device.
• DatasourceSystemBios_RS3 The total number of objects of this type present on this device.
• DecisionApplicationFile_RS3 The total number of objects of this type present on this device.
• DecisionDevicePnp_RS2 The total number of objects of this type present on this device.
• DecisionDevicePnp_RS3 The total number of objects of this type present on this device.
• DecisionDriverPackage_RS3 The total number of objects of this type present on this device.
• DecisionMatchingInfoBlock_RS3 The total number of objects of this type present on this device.
• DecisionMatchingInfoPassive_RS3 The total number of objects of this type present on this device.
• DecisionMatchingInfoPostUpgrade_RS3 The total number of objects of this type present on this device.
• DecisionMediaCenter_RS3 The total number of objects of this type present on this device.
• DecisionSystemBios_RS3 The total number of objects of this type present on this device.
• InventoryLanguagePack The total number of objects of this type present on this device.
• InventorySystemBios The total number of objects of this type present on this device.
• PCFP The total number of objects of this type present on this device.
• SystemProcessorCompareExchange The total number of objects of this type present on this device.
• SystemProcessorNx The total number of objects of this type present on this device.
• SystemProcessorPrefetchW The total number of objects of this type present on this device.
• SystemProcessorSse2 The total number of objects of this type present on this device.
• SystemWim The total number of objects of this type present on this device.
• SystemWindowsActivationStatus The total number of objects of this type present on this device.
• SystemWlan The total number of objects of this type present on this device.

This event represents the basic metadata about specific application files installed on the system. The data collected with this event is used to help keep Windows up to date.

The following fields are available:

• AppraiserVersion The version of the appraiser file that is generating the events.
• AvDisplayName If the app is an anti-virus app, this is its display name.
• CompatModelIndex The compatibility prediction for this file.
• HasCitData Indicates whether the file is present in CIT data.
• HasUpgradeExe Indicates whether the anti-virus app has an upgrade.exe file.
• IsAv Is the file an anti-virus reporting EXE?
• ResolveAttempted This will always be an empty string when sending diagnostic data.
• SdbEntries An array of fields that indicates the SDB entries that apply to this file.

This event indicates that the DatasourceApplicationFile object is no longer present. The data collected with this event is used to help keep Windows up to date.

This event includes fields from Ms.Device.DeviceInventoryChange.

The following fields are available:

• AppraiserVersion The version of the Appraiser file that is generating the events.

This event indicates that a new set of DatasourceApplicationFileAdd events will be sent. The data collected with this event is used to help keep Windows up to date.

This event includes fields from Ms.Device.DeviceInventoryChange.

The following fields are available:

• AppraiserVersion The version of the Appraiser file that is generating the events.

This event sends compatibility data for a Plug and Play device, to help keep Windows up to date.

The following fields are available:

• ActiveNetworkConnection Indicates whether the device is an active network device.
• AppraiserVersion The version of the appraiser file generating the events.
• IsBootCritical Indicates whether the device boot is critical.
• SdbEntries An array of fields indicating the SDB entries that apply to this device.
• WuDriverCoverage Indicates whether there is a driver uplevel for this device, according to Windows Update.
• WuDriverUpdateId The Windows Update ID of the applicable uplevel driver.
• WuDriverUpdateID The Update ID of the applicable uplevel driver from Windows Update.
• WuPopulatedFromId The expected uplevel driver matching ID based on driver coverage from Windows Update.
• WuPopulatedFromID The expected uplevel driver matching ID based on driver coverage from Windows Update.

This event indicates that the DatasourceDevicePnp object is no longer present. The data collected with this event is used to help keep Windows up to date.

This event includes fields from Ms.Device.DeviceInventoryChange.

The following fields are available:

• AppraiserVersion The version of the Appraiser file that is generating the events.

This event indicates that a new set of DatasourceDevicePnpAdd events will be sent. The data collected with this event is used to help keep Windows up to date.

This event includes fields from Ms.Device.DeviceInventoryChange.

The following fields are available:

• AppraiserVersion The version of the Appraiser file that is generating the events.

This event sends compatibility database data about driver packages to help keep Windows up to date.

The following fields are available:

• AppraiserVersion The version of the appraiser file generating the events.

This event indicates that the DatasourceDriverPackage object is no longer present. The data collected with this event is used to help keep Windows up to date.

This event includes fields from Ms.Device.DeviceInventoryChange.

The following fields are available:

• AppraiserVersion The version of the Appraiser file that is generating the events.

This event indicates that a new set of DatasourceDriverPackageAdd events will be sent. The data collected with this event is used to help keep Windows up to date.

This event includes fields from Ms.Device.DeviceInventoryChange.

The following fields are available:

• AppraiserVersion The version of the Appraiser file that is generating the events.

This event sends blocking data about any compatibility blocking entries on the system that are not directly related to specific applications or devices, to help keep Windows up to date.

The following fields are available:

• AppraiserVersion The version of the appraiser file generating the events.

This event indicates that the DataSourceMatchingInfoBlock object is no longer present. The data collected with this event is used to help keep Windows up to date.

This event includes fields from Ms.Device.DeviceInventoryChange.

The following fields are available:

• AppraiserVersion The version of the Appraiser file that is generating the events.

This event indicates that a full set of DataSourceMatchingInfoBlockStAdd events has completed being sent. This event is used to make compatibility decisions about files to help keep Windows up to date.

This event includes fields from Ms.Device.DeviceInventoryChange.

The following fields are available:

• AppraiserVersion The version of the Appraiser file that is generating the events.

This event sends compatibility database information about non-blocking compatibility entries on the system that are not keyed by either applications or devices, to help keep Windows up to date.

The following fields are available:

• AppraiserVersion The version of the appraiser file generating the events.

This event indicates that the DataSourceMatchingInfoPassive object is no longer present. The data collected with this event is used to help keep Windows up to date.

This event includes fields from Ms.Device.DeviceInventoryChange.

The following fields are available:

• AppraiserVersion The version of the Appraiser file that is generating the events.

This event indicates that a new set of DataSourceMatchingInfoPassiveAdd events will be sent. This event is used to make compatibility decisions about files to help keep Windows up to date.

This event includes fields from Ms.Device.DeviceInventoryChange.

The following fields are available:

• AppraiserVersion The version of the Appraiser file that is generating the events.

This event sends compatibility database information about entries requiring reinstallation after an upgrade on the system that are not keyed by either applications or devices, to help keep Windows up to date.

The following fields are available:

• AppraiserVersion The version of the appraiser file generating the events.

This event indicates that the DataSourceMatchingInfoPostUpgrade object is no longer present. The data collected with this event is used to help keep Windows up to date.

This event includes fields from Ms.Device.DeviceInventoryChange.

The following fields are available:

• AppraiserVersion The version of the Appraiser file that is generating the events.

This event indicates that a new set of DataSourceMatchingInfoPostUpgradeAdd events will be sent. The data collected with this event is used to help keep Windows up to date.

This event includes fields from Ms.Device.DeviceInventoryChange.

The following fields are available:

• AppraiserVersion The version of the Appraiser file that is generating the events.

This event sends compatibility database information about the BIOS to help keep Windows up to date.

The following fields are available:

• AppraiserVersion The version of the Appraiser file generating the events.
• SdbEntries An array of fields indicating the SDB entries that apply to this BIOS.

This event indicates that the DatasourceSystemBios object is no longer present. The data collected with this event is used to help keep Windows up to date.

This event includes fields from Ms.Device.DeviceInventoryChange.

The following fields are available:

• AppraiserVersion The version of the Appraiser file that is generating the events.

This event indicates that a new set of DatasourceSystemBiosAdd events will be sent. The data collected with this event is used to help keep Windows up to date.

This event includes fields from Ms.Device.DeviceInventoryChange.

The following fields are available:

• AppraiserVersion The version of the Appraiser file that is generating the events.

This event sends compatibility decision data about a file to help keep Windows up to date.

The following fields are available:

• AppraiserVersion The version of the appraiser file that is generating the events.
• BlockAlreadyInbox The uplevel runtime block on the file already existed on the current OS.
• BlockingApplication Indicates whether there are any application issues that interfere with the upgrade due to the file in question.
• DisplayGenericMessage Will be a generic message be shown for this file?
• HardBlock This file is blocked in the SDB.
• HasUxBlockOverride Does the file have a block that is overridden by a tag in the SDB?
• MigApplication Does the file have a MigXML from the SDB associated with it that applies to the current upgrade mode?
• MigRemoval Does the file have a MigXML from the SDB that will cause the app to be removed on upgrade?
• NeedsDismissAction Will the file cause an action that can be dimissed?
• NeedsInstallPostUpgradeData After upgrade, the file will have a post-upgrade notification to install a replacement for the app.
• NeedsNotifyPostUpgradeData Does the file have a notification that should be shown after upgrade?
• NeedsReinstallPostUpgradeData After upgrade, this file will have a post-upgrade notification to reinstall the app.
• NeedsUninstallAction The file must be uninstalled to complete the upgrade.
• SdbBlockUpgrade The file is tagged as blocking upgrade in the SDB,
• SdbBlockUpgradeCanReinstall The file is tagged as blocking upgrade in the SDB. It can be reinstalled after upgrade.
• SdbBlockUpgradeUntilUpdate The file is tagged as blocking upgrade in the SDB. If the app is updated, the upgrade can proceed.
• SdbReinstallUpgrade The file is tagged as needing to be reinstalled after upgrade in the SDB. It does not block upgrade.
• SdbReinstallUpgradeWarn The file is tagged as needing to be reinstalled after upgrade with a warning in the SDB. It does not block upgrade.
• SoftBlock The file is softblocked in the SDB and has a warning.

This event indicates that the DecisionApplicationFile object is no longer present. The data collected with this event is used to help keep Windows up to date.

This event includes fields from Ms.Device.DeviceInventoryChange.

The following fields are available:

• AppraiserVersion The version of the Appraiser file that is generating the events.

This event indicates that a new set of DecisionApplicationFileAdd events will be sent. This event is used to make compatibility decisions about a file to help keep Windows up to date.

This event includes fields from Ms.Device.DeviceInventoryChange.

The following fields are available:

• AppraiserVersion The version of the Appraiser file that is generating the events.

This event sends compatibility decision data about a Plug and Play (PNP) device to help keep Windows up to date.

The following fields are available:

• AppraiserVersion The version of the appraiser file generating the events.
• AssociatedDriverIsBlocked Is the driver associated with this PNP device blocked?
• BlockAssociatedDriver Should the driver associated with this PNP device be blocked?
• BlockingDevice Is this PNP device blocking upgrade?
• BlockUpgradeIfDriverBlocked Is the PNP device both boot critical and does not have a driver included with the OS?
• BlockUpgradeIfDriverBlockedAndOnlyActiveNetwork Is this PNP device the only active network device?
• DisplayGenericMessage Will a generic message be shown during Setup for this PNP device?
• DriverAvailableInbox Is a driver included with the operating system for this PNP device?
• DriverAvailableOnline Is there a driver for this PNP device on Windows Update?
• DriverAvailableUplevel Is there a driver on Windows Update or included with the operating system for this PNP device?
• DriverBlockOverridden Is there is a driver block on the device that has been overridden?
• NeedsDismissAction Will the user would need to dismiss a warning during Setup for this device?
• NotRegressed Does the device have a problem code on the source OS that is no better than the one it would have on the target OS?
• SdbDeviceBlockUpgrade Is there an SDB block on the PNP device that blocks upgrade?
• SdbDriverBlockOverridden Is there an SDB block on the PNP device that blocks upgrade, but that block was overridden?

This event Indicates that the DecisionDevicePnp object represented by the objectInstanceId is no longer present. This event is used to make compatibility decisions about PNP devices to help keep Windows up to date.

This event includes fields from Ms.Device.DeviceInventoryChange.

The following fields are available:

• AppraiserVersion The version of the Appraiser file that is generating the events.

This event indicates that a new set of DecisionDevicePnpAdd events will be sent. This event is used to make compatibility decisions about PNP devices to help keep Windows up to date.

This event includes fields from Ms.Device.DeviceInventoryChange.

The following fields are available:

• AppraiserVersion The version of the Appraiser file that is generating the events.

This event sends decision data about driver package compatibility to help keep Windows up to date.

The following fields are available:

• AppraiserVersion The version of the appraiser file generating the events.
• DriverBlockOverridden Does the driver package have an SDB block that blocks it from migrating, but that block has been overridden?
• DriverIsDeviceBlocked Was the driver package was blocked because of a device block?
• DriverIsDriverBlocked Is the driver package blocked because of a driver block?
• DriverShouldNotMigrate Should the driver package be migrated during upgrade?
• SdbDriverBlockOverridden Does the driver package have an SDB block that blocks it from migrating, but that block has been overridden?

This event indicates that the DecisionDriverPackage object represented by the objectInstanceId is no longer present. This event is used to make compatibility decisions about driver packages to help keep Windows up to date.

This event includes fields from Ms.Device.DeviceInventoryChange.

The following fields are available:

• AppraiserVersion The version of the Appraiser file that is generating the events.

The DecisionDriverPackageStartSync event indicates that a new set of DecisionDriverPackageAdd events will be sent. This event is used to make compatibility decisions about driver packages to help keep Windows up to date.

This event includes fields from Ms.Device.DeviceInventoryChange.

The following fields are available:

• AppraiserVersion The version of the Appraiser file that is generating the events.

This event sends compatibility decision data about blocking entries on the system that are not keyed by either applications or devices, to help keep Windows up to date.

The following fields are available:

• AppraiserVersion The version of the appraiser file generating the events.
• BlockingApplication Are there are any application issues that interfere with upgrade due to matching info blocks?
• DisplayGenericMessage Will a generic message be shown for this block?
• NeedsUninstallAction Does the user need to take an action in setup due to a matching info block?
• SdbBlockUpgrade Is a matching info block blocking upgrade?
• SdbBlockUpgradeCanReinstall Is a matching info block blocking upgrade, but has the can reinstall tag?
• SdbBlockUpgradeUntilUpdate Is a matching info block blocking upgrade but has the until update tag?

This event indicates that the DecisionMatchingInfoBlock object is no longer present. The data collected with this event is used to help keep Windows up to date.

This event includes fields from Ms.Device.DeviceInventoryChange.

The following fields are available:

• AppraiserVersion The version of the Appraiser file that is generating the events.

This event indicates that a new set of DecisionMatchingInfoBlockAdd events will be sent. The data collected with this event is used to help keep Windows up to date.

This event includes fields from Ms.Device.DeviceInventoryChange.

The following fields are available:

• AppraiserVersion The version of the Appraiser file that is generating the events.

This event sends compatibility decision data about non-blocking entries on the system that are not keyed by either applications or devices, to help keep Windows up to date.

The following fields are available:

• AppraiserVersion The version of the Appraiser file that is generating the events.
• BlockingApplication Are there any application issues that interfere with upgrade due to matching info blocks?
• MigApplication Is there a matching info block with a mig for the current mode of upgrade?

This event Indicates that the DecisionMatchingInfoPassive object is no longer present. The data collected with this event is used to help keep Windows up to date.

This event includes fields from Ms.Device.DeviceInventoryChange.

The following fields are available:

• AppraiserVersion The version of the Appraiser file that is generating the events.

This event indicates that a new set of DecisionMatchingInfoPassiveAdd events will be sent. The data collected with this event is used to help keep Windows up to date.

This event includes fields from Ms.Device.DeviceInventoryChange.

The following fields are available:

• AppraiserVersion The version of the Appraiser file that is generating the events.

This event sends compatibility decision data about entries that require reinstall after upgrade. It's used to help keep Windows up to date.

The following fields are available:

• AppraiserVersion The version of the Appraiser file that is generating the events.
• NeedsInstallPostUpgradeData Will the file have a notification after upgrade to install a replacement for the app?
• NeedsNotifyPostUpgradeData Should a notification be shown for this file after upgrade?
• NeedsReinstallPostUpgradeData Will the file have a notification after upgrade to reinstall the app?
• SdbReinstallUpgrade The file is tagged as needing to be reinstalled after upgrade in the compatibility database (but is not blocking upgrade).

This event indicates that the DecisionMatchingInfoPostUpgrade object is no longer present. The data collected with this event is used to help keep Windows up to date.

This event includes fields from Ms.Device.DeviceInventoryChange.

The following fields are available:

• AppraiserVersion The version of the Appraiser file that is generating the events.

This event indicates that a new set of DecisionMatchingInfoPostUpgradeAdd events will be sent. The data collected with this event is used to help keep Windows up to date.

This event includes fields from Ms.Device.DeviceInventoryChange.

The following fields are available:

• AppraiserVersion The version of the Appraiser file that is generating the events.

This event sends decision data about the presence of Windows Media Center, to help keep Windows up to date.

The following fields are available:

• AppraiserVersion The version of the Appraiser file generating the events.
• BlockingApplication Is there any application issues that interfere with upgrade due to Windows Media Center?
• MediaCenterActivelyUsed If Windows Media Center is supported on the edition, has it been run at least once and are the MediaCenterIndicators are true?
• MediaCenterIndicators Do any indicators imply that Windows Media Center is in active use?
• MediaCenterInUse Is Windows Media Center actively being used?
• MediaCenterPaidOrActivelyUsed Is Windows Media Center actively being used or is it running on a supported edition?
• NeedsDismissAction Are there any actions that can be dismissed coming from Windows Media Center?

This event indicates that the DecisionMediaCenter object is no longer present. The data collected with this event is used to help keep Windows up to date.

This event includes fields from Ms.Device.DeviceInventoryChange.

The following fields are available:

• AppraiserVersion The version of the Appraiser file that is generating the events.

This event indicates that a new set of DecisionMediaCenterAdd events will be sent. The data collected with this event is used to help keep Windows up to date.

This event includes fields from Ms.Device.DeviceInventoryChange.

The following fields are available:

• AppraiserVersion The version of the Appraiser file that is generating the events.

This event sends compatibility decision data about the BIOS to help keep Windows up to date.

The following fields are available:

• AppraiserVersion The version of the Appraiser file generating the events.
• Blocking Is the device blocked from upgrade due to a BIOS block?
• HasBiosBlock Does the device have a BIOS block?

This event indicates that the DecisionSystemBios object is no longer present. The data collected with this event is used to help keep Windows up to date.

This event includes fields from Ms.Device.DeviceInventoryChange.

The following fields are available:

• AppraiserVersion The version of the Appraiser file that is generating the events.

This event indicates that a new set of DecisionSystemBiosAdd events will be sent. The data collected with this event is used to help keep Windows up to date.

This event includes fields from Ms.Device.DeviceInventoryChange.

The following fields are available:

• AppraiserVersion The version of the Appraiser file that is generating the events.

This event indicates that Appraiser has been triggered to run an enterprise scenario while the DiagTrack service is installed. This event can only be sent if a special flag is used to trigger the enterprise scenario. The data collected with this event is used to help keep Windows up to date.

The following fields are available:

• PCFP An ID for the system calculated by hashing hardware identifiers.
• Time The client time of the event.

This event sends data about the results of running a set of quick-blocking instructions, to help keep Windows up to date.

The following fields are available:

• NewData The data in the registry value after the scan completed.
• OldData The previous data in the registry value before the scan ran.
• PCFP An ID for the system calculated by hashing hardware identifiers.
• RegKey The registry key name for which a result is being sent.
• RegValue The registry value for which a result is being sent.
• Time The client time of the event.

This event represents the basic metadata about a file on the system. The file must be part of an app and either have a block in the compatibility database or be part of an antivirus program. The data collected with this event is used to help keep Windows up to date.

The following fields are available:

• AppraiserVersion The version of the Appraiser file generating the events.
• BinaryType A binary type. Example: UNINITIALIZED, ZERO_BYTE, DATA_ONLY, DOS_MODULE, NE16_MODULE, PE32_UNKNOWN, PE32_I386, PE32_ARM, PE64_UNKNOWN, PE64_AMD64, PE64_ARM64, PE64_IA64, PE32_CLR_32, PE32_CLR_IL, PE32_CLR_IL_PREFER32, PE64_CLR_64.
• BinFileVersion An attempt to clean up FileVersion at the client that tries to place the version into 4 octets.
• BinProductVersion An attempt to clean up ProductVersion at the client that tries to place the version into 4 octets.
• BoeProgramId If there is no entry in Add/Remove Programs, this is the ProgramID that is generated from the file metadata.
• CompanyName The company name of the vendor who developed this file.
• FileId A hash that uniquely identifies a file.
• FileVersion The File version field from the file metadata under Properties -> Details.
• LinkDate The date and time that this file was linked on.
• LowerCaseLongPath The full file path to the file that was inventoried on the device.
• Name The name of the file that was inventoried.
• ProductName The Product name field from the file metadata under Properties -> Details.
• ProductVersion The Product version field from the file metadata under Properties -> Details.
• ProgramId A hash of the Name, Version, Publisher, and Language of an application used to identify it.
• Size The size of the file (in hexadecimal bytes).

This event indicates that the InventoryApplicationFile object is no longer present. The data collected with this event is used to help keep Windows up to date.

This event includes fields from Ms.Device.DeviceInventoryChange.

The following fields are available:

• AppraiserVersion The version of the Appraiser file that is generating the events.

This event indicates that a new set of InventoryApplicationFileAdd events will be sent. The data collected with this event is used to help keep Windows up to date.

This event includes fields from Ms.Device.DeviceInventoryChange.

The following fields are available:

• AppraiserVersion The version of the Appraiser file that is generating the events.

This event sends data about the number of language packs installed on the system, to help keep Windows up to date.

The following fields are available:

• AppraiserVersion The version of the Appraiser file that is generating the events.
• HasLanguagePack Indicates whether this device has 2 or more language packs.
• LanguagePackCount The number of language packs are installed.

This event indicates that the InventoryLanguagePack object is no longer present. The data collected with this event is used to help keep Windows up to date.

This event includes fields from Ms.Device.DeviceInventoryChange.

The following fields are available:

• AppraiserVersion The version of the Appraiser file that is generating the events.

This event indicates that a new set of InventoryLanguagePackAdd events will be sent. The data collected with this event is used to help keep Windows up to date.

This event includes fields from Ms.Device.DeviceInventoryChange.

The following fields are available:

• AppraiserVersion The version of the Appraiser file that is generating the events.

This event sends true/false data about decision points used to understand whether Windows Media Center is used on the system, to help keep Windows up to date.

The following fields are available:

• AppraiserVersion The version of the Appraiser file generating the events.
• EverLaunched Has Windows Media Center ever been launched?
• HasConfiguredTv Has the user configured a TV tuner through Windows Media Center?
• HasExtendedUserAccounts Are any Windows Media Center Extender user accounts configured?
• HasWatchedFolders Are any folders configured for Windows Media Center to watch?
• IsDefaultLauncher Is Windows Media Center the default app for opening music or video files?
• IsPaid Is the user running a Windows Media Center edition that implies they paid for Windows Media Center?
• IsSupported Does the running OS support Windows Media Center?

This event indicates that the InventoryMediaCenter object is no longer present. The data collected with this event is used to help keep Windows up to date.

This event includes fields from Ms.Device.DeviceInventoryChange.

The following fields are available:

• AppraiserVersion The version of the Appraiser file that is generating the events.

This event indicates that a new set of InventoryMediaCenterAdd events will be sent. The data collected with this event is used to help keep Windows up to date.

This event includes fields from Ms.Device.DeviceInventoryChange.

The following fields are available:

• AppraiserVersion The version of the Appraiser file that is generating the events.

This event sends basic metadata about the BIOS to determine whether it has a compatibility block. The data collected with this event is used to help keep Windows up to date.

The following fields are available:

• AppraiserVersion The version of the Appraiser file that is generating the events.
• BiosDate The release date of the BIOS in UTC format.
• BiosName The name field from Win32_BIOS.
• Manufacturer The manufacturer field from Win32_ComputerSystem.
• Model The model field from Win32_ComputerSystem.

This event indicates that the InventorySystemBios object is no longer present. The data collected with this event is used to help keep Windows up to date.

This event includes fields from Ms.Device.DeviceInventoryChange.

The following fields are available:

• AppraiserVersion The version of the Appraiser file that is generating the events.

This event indicates that a new set of InventorySystemBiosAdd events will be sent. The data collected with this event is used to help keep Windows up to date.

This event includes fields from Ms.Device.DeviceInventoryChange.

The following fields are available:

• AppraiserVersion The version of the Appraiser binary (executable) generating the events.

This event runs only during setup. It provides a listing of the uplevel driver packages that were downloaded before the upgrade. It is critical in understanding if failures in setup can be traced to not having sufficient uplevel drivers before the upgrade. The data collected with this event is used to help keep Windows up to date.

This event includes fields from Ms.Device.DeviceInventoryChange.

The following fields are available:

• AppraiserVersion The version of the Appraiser file that is generating the events.
• BootCritical Is the driver package marked as boot critical?
• Build The build value from the driver package.
• CatalogFile The name of the catalog file within the driver package.
• Class The device class from the driver package.
• ClassGuid The device class unique ID from the driver package.
• Date The date from the driver package.
• Inbox Is the driver package of a driver that is included with Windows?
• OriginalName The original name of the INF file before it was renamed. Generally a path under $WINDOWS.~BT\Drivers\DU.
• Provider The provider of the driver package.
• PublishedName The name of the INF file after it was renamed.
• Revision The revision of the driver package.
• SignatureStatus Indicates if the driver package is signed. Unknown = 0, Unsigned = 1, Signed = 2.
• VersionMajor The major version of the driver package.
• VersionMinor The minor version of the driver package.

This event indicates that the InventoryUplevelDriverPackage object is no longer present. The data collected with this event is used to help keep Windows up to date.

This event includes fields from Ms.Device.DeviceInventoryChange.

The following fields are available:

• AppraiserVersion The version of the Appraiser file that is generating the events.

This event indicates that a new set of InventoryUplevelDriverPackageAdd events will be sent. The data collected with this event is used to help keep Windows up to date.

This event includes fields from Ms.Device.DeviceInventoryChange.

The following fields are available:

• AppraiserVersion The version of the Appraiser file that is generating the events.

This event is sent at the beginning of an appraiser run, the RunContext indicates what should be expected in the following data payload. This event is used with the other Appraiser events to make compatibility decisions to keep Windows up to date.

The following fields are available:

• AppraiserBranch The source branch in which the currently running version of Appraiser was built.
• AppraiserProcess The name of the process that launched Appraiser.
• AppraiserVersion The version of the Appraiser file generating the events.
• Context Indicates what mode Appraiser is running in. Example: Setup or Telemetry.
• PCFP An ID for the system calculated by hashing hardware identifiers.
• Time The client time of the event.

This event sends data on the amount of memory on the system and whether it meets requirements, to help keep Windows up to date.

The following fields are available:

• AppraiserVersion The version of the Appraiser file generating the events.
• Blocking Is the device from upgrade due to memory restrictions?
• MemoryRequirementViolated Was a memory requirement violated?
• pageFile The current committed memory limit for the system or the current process, whichever is smaller (in bytes).
• ram The amount of memory on the device.
• ramKB The amount of memory (in KB).
• virtual The size of the user-mode portion of the virtual address space of the calling process (in bytes).
• virtualKB The amount of virtual memory (in KB).

This event that the SystemMemory object is no longer present. The data collected with this event is used to help keep Windows up to date.

This event includes fields from Ms.Device.DeviceInventoryChange.

The following fields are available:

• AppraiserVersion The version of the Appraiser file that is generating the events.

This event indicates that a new set of SystemMemoryAdd events will be sent. The data collected with this event is used to help keep Windows up to date.

This event includes fields from Ms.Device.DeviceInventoryChange.

The following fields are available:

• AppraiserVersion The version of the Appraiser file that is generating the events.

This event sends data indicating whether the system supports the CompareExchange128 CPU requirement, to help keep Windows up to date.

The following fields are available:

• AppraiserVersion The version of the Appraiser file generating the events.
• Blocking Is the upgrade blocked due to the processor?
• CompareExchange128Support Does the CPU support CompareExchange128?

This event indicates that the SystemProcessorCompareExchange object is no longer present. The data collected with this event is used to help keep Windows up to date.

This event includes fields from Ms.Device.DeviceInventoryChange.

The following fields are available:

• AppraiserVersion The version of the Appraiser file that is generating the events.

This event indicates that a new set of SystemProcessorCompareExchangeAdd events will be sent. The data collected with this event is used to help keep Windows up to date.

This event includes fields from Ms.Device.DeviceInventoryChange.

The following fields are available:

• AppraiserVersion The version of the Appraiser file that is generating the events.

This event sends data indicating whether the system supports the LAHF & SAHF CPU requirement, to help keep Windows up to date.

The following fields are available:

• AppraiserVersion The version of the Appraiser file generating the events.
• Blocking Is the upgrade blocked due to the processor?
• LahfSahfSupport Does the CPU support LAHF/SAHF?

This event indicates that the SystemProcessorLahfSahf object is no longer present. The data collected with this event is used to help keep Windows up to date.

This event includes fields from Ms.Device.DeviceInventoryChange.

The following fields are available:

• AppraiserVersion The version of the Appraiser file that is generating the events.

This event indicates that a new set of SystemProcessorLahfSahfAdd events will be sent. The data collected with this event is used to help keep Windows up to date.

This event includes fields from Ms.Device.DeviceInventoryChange.

The following fields are available:

• AppraiserVersion The version of the Appraiser file that is generating the events.

This event sends data indicating whether the system supports the NX CPU requirement, to help keep Windows up to date.

The following fields are available:

• AppraiserVersion The version of the Appraiser file that is generating the events.
• Blocking Is the upgrade blocked due to the processor?
• NXDriverResult The result of the driver used to do a non-deterministic check for NX support.
• NXProcessorSupport Does the processor support NX?

This event indicates that the SystemProcessorNx object is no longer present. The data collected with this event is used to help keep Windows up to date.

This event includes fields from Ms.Device.DeviceInventoryChange.

The following fields are available:

• AppraiserVersion The version of the Appraiser file that is generating the events.

This event indicates that a new set of SystemProcessorNxAdd events will be sent. The data collected with this event is used to help keep Windows up to date.

This event includes fields from Ms.Device.DeviceInventoryChange.

The following fields are available:

• AppraiserVersion The version of the Appraiser file that is generating the events.

This event sends data indicating whether the system supports the PrefetchW CPU requirement, to help keep Windows up to date.

The following fields are available:

• AppraiserVersion The version of the Appraiser file that is generating the events.
• Blocking Is the upgrade blocked due to the processor?
• PrefetchWSupport Does the processor support PrefetchW?

This event indicates that the SystemProcessorPrefetchW object is no longer present. The data collected with this event is used to help keep Windows up to date.

This event includes fields from Ms.Device.DeviceInventoryChange.

The following fields are available:

• AppraiserVersion The version of the Appraiser file that is generating the events.

This event indicates that a new set of SystemProcessorPrefetchWAdd events will be sent. The data collected with this event is used to help keep Windows up to date.

This event includes fields from Ms.Device.DeviceInventoryChange.

The following fields are available:

• AppraiserVersion The version of the Appraiser file that is generating the events.

This event sends data indicating whether the system supports the SSE2 CPU requirement, to help keep Windows up to date.

The following fields are available:

• AppraiserVersion The version of the Appraiser file that is generating the events.
• Blocking Is the upgrade blocked due to the processor?
• SSE2ProcessorSupport Does the processor support SSE2?

This event indicates that the SystemProcessorSse2 object is no longer present. The data collected with this event is used to help keep Windows up to date.

This event includes fields from Ms.Device.DeviceInventoryChange.

The following fields are available:

• AppraiserVersion The version of the Appraiser file that is generating the events.

This event indicates that a new set of SystemProcessorSse2Add events will be sent. The data collected with this event is used to help keep Windows up to date.

This event includes fields from Ms.Device.DeviceInventoryChange.

The following fields are available:

• AppraiserVersion The version of the Appraiser file that is generating the events.

This event sends data indicating whether the system supports touch, to help keep Windows up to date.

The following fields are available:

• AppraiserVersion The version of the Appraiser file that is generating the events.
• IntegratedTouchDigitizerPresent Is there an integrated touch digitizer?
• MaximumTouches The maximum number of touch points supported by the device hardware.

This event indicates that the SystemTouch object is no longer present. The data collected with this event is used to help keep Windows up to date.

This event includes fields from Ms.Device.DeviceInventoryChange.

The following fields are available:

• AppraiserVersion The version of the Appraiser file that is generating the events.

This event indicates that a new set of SystemTouchAdd events will be sent. The data collected with this event is used to help keep Windows up to date.

This event includes fields from Ms.Device.DeviceInventoryChange.

The following fields are available:

• AppraiserVersion The version of the Appraiser file that is generating the events.

This event sends data indicating whether the operating system is running from a compressed Windows Imaging Format (WIM) file, to help keep Windows up to date.

The following fields are available:

• AppraiserVersion The version of the Appraiser file that is generating the events.
• IsWimBoot Is the current operating system running from a compressed WIM file?
• RegistryWimBootValue The raw value from the registry that is used to indicate if the device is running from a WIM.

This event indicates that the SystemWim object is no longer present. The data collected with this event is used to help keep Windows up to date.

This event includes fields from Ms.Device.DeviceInventoryChange.

The following fields are available:

• AppraiserVersion The version of the Appraiser file that is generating the events.

This event indicates that a new set of SystemWimAdd events will be sent. The data collected with this event is used to help keep Windows up to date.

This event includes fields from Ms.Device.DeviceInventoryChange.

The following fields are available:

• AppraiserVersion The version of the Appraiser file that is generating the events.

This event sends data indicating whether the current operating system is activated, to help keep Windows up to date.

The following fields are available:

• AppraiserVersion The version of the Appraiser file that is generating the events.
• WindowsIsLicensedApiValue The result from the API that's used to indicate if operating system is activated.
• WindowsNotActivatedDecision Is the current operating system activated?

This event indicates that the SystemWindowsActivationStatus object is no longer present. The data collected with this event is used to help keep Windows up to date.

This event includes fields from Ms.Device.DeviceInventoryChange.

The following fields are available:

• AppraiserVersion The version of the Appraiser file that is generating the events.

This event indicates that a new set of SystemWindowsActivationStatusAdd events will be sent. The data collected with this event is used to help keep Windows up to date.

This event includes fields from Ms.Device.DeviceInventoryChange.

The following fields are available:

• AppraiserVersion The version of the Appraiser file that is generating the events.

This event sends data indicating whether the system has WLAN, and if so, whether it uses an emulated driver that could block an upgrade, to help keep Windows up to date.

The following fields are available:

• AppraiserVersion The version of the Appraiser file that is generating the events.
• Blocking Is the upgrade blocked because of an emulated WLAN driver?
• HasWlanBlock Does the emulated WLAN driver have an upgrade block?
• WlanEmulatedDriver Does the device have an emulated WLAN driver?
• WlanExists Does the device support WLAN at all?
• WlanModulePresent Are any WLAN modules present?
• WlanNativeDriver Does the device have a non-emulated WLAN driver?

This event indicates that the SystemWlan object is no longer present. The data collected with this event is used to help keep Windows up to date.

This event includes fields from Ms.Device.DeviceInventoryChange.

The following fields are available:

• AppraiserVersion The version of the Appraiser file that is generating the events.

This event indicates that a new set of SystemWlanAdd events will be sent. The data collected with this event is used to help keep Windows up to date.

This event includes fields from Ms.Device.DeviceInventoryChange.

The following fields are available:

• AppraiserVersion The version of the Appraiser file that is generating the events.

This event indicates the parameters and result of a diagnostic data run. This allows the rest of the data sent over the course of the run to be properly contextualized and understood, which is then used to keep Windows up to date.

The following fields are available:

• AppraiserBranch The source branch in which the version of Appraiser that is running was built.
• AppraiserDataVersion The version of the data files being used by the Appraiser diagnostic data run.
• AppraiserProcess The name of the process that launched Appraiser.
• AppraiserVersion The file version (major, minor and build) of the Appraiser DLL, concatenated without dots.
• AuxFinal Obsolete, always set to false.
• AuxInitial Obsolete, indicates if Appraiser is writing data files to be read by the Get Windows 10 app.
• DeadlineDate A timestamp representing the deadline date, which is the time until which appraiser will wait to do a full scan.
• EnterpriseRun Indicates whether the diagnostic data run is an enterprise run, which means appraiser was run from the command line with an extra enterprise parameter.
• FullSync Indicates if Appraiser is performing a full sync, which means that full set of events representing the state of the machine are sent. Otherwise, only the changes from the previous run are sent.
• InventoryFullSync Indicates if inventory is performing a full sync, which means that the full set of events representing the inventory of machine are sent.
• PCFP An ID for the system calculated by hashing hardware identifiers.
• PerfBackoff Indicates if the run was invoked with logic to stop running when a user is present. Helps to understand why a run may have a longer elapsed time than normal.
• PerfBackoffInsurance Indicates if appraiser is running without performance backoff because it has run with perf backoff and failed to complete several times in a row.
• RunAppraiser Indicates if Appraiser was set to run at all. If this if false, it is understood that data events will not be received from this device.
• RunDate The date that the diagnostic data run was stated, expressed as a filetime.
• RunGeneralTel Indicates if the generaltel.dll component was run. Generaltel collects additional diagnostic data on an infrequent schedule and only from machines at diagnostic data levels higher than Basic.
• RunOnline Indicates if appraiser was able to connect to Windows Update and therefore is making decisions using up-to-date driver coverage information.
• RunResult The hresult of the Appraiser diagnostic data run.
• SendingUtc Indicates whether the Appraiser client is sending events during the current diagnostic data run.
• StoreHandleIsNotNull Obsolete, always set to false
• TelementrySent Indicates whether diagnostic data was successfully sent.
• ThrottlingUtc Indicates whether the Appraiser client is throttling its output of CUET events to avoid being disabled. This increases runtime but also diagnostic data reliability.
• Time The client time of the event.
• VerboseMode Indicates if appraiser ran in Verbose mode, which is a test-only mode with extra logging.
• WhyFullSyncWithoutTablePrefix Indicates the reason or reasons that a full sync was generated.

This event sends data about the usage of older digital rights management on the system, to help keep Windows up to date. This data does not indicate the details of the media using the digital rights management, only whether any such files exist. Collecting this data was critical to ensuring the correct mitigation for customers, and should be able to be removed once all mitigations are in place.

This event includes fields from Ms.Device.DeviceInventoryChange.

The following fields are available:

• AppraiserVersion The version of the Appraiser file that is generating the events.
• BlockingApplication Same as NeedsDismissAction.
• NeedsDismissAction Indicates if a dismissible message is needed to warn the user about a potential loss of data due to DRM deprecation.
• WmdrmApiResult Raw value of the API used to gather DRM state.
• WmdrmCdRipped Indicates if the system has any files encrypted with personal DRM, which was used for ripped CDs.
• WmdrmIndicators WmdrmCdRipped OR WmdrmPurchased.
• WmdrmInUse WmdrmIndicators AND dismissible block in setup was not dismissed.
• WmdrmNonPermanent Indicates if the system has any files with non-permanent licenses.
• WmdrmPurchased Indicates if the system has any files with permanent licenses.

This event indicates that the Wmdrm object is no longer present. The data collected with this event is used to help keep Windows up to date.

This event includes fields from Ms.Device.DeviceInventoryChange.

The following fields are available:

• AppraiserVersion The version of the Appraiser file that is generating the events.

The WmdrmStartSync event indicates that a new set of WmdrmAdd events will be sent. This event is used to understand the usage of older digital rights management on the system, to help keep Windows up to date.

This event includes fields from Ms.Device.DeviceInventoryChange.

The following fields are available:

• AppraiserVersion The version of the Appraiser file that is generating the events.

This event sends version data about the Apps running on this device. The data collected with this event is used to help keep Windows secure and up to date.

The following fields are available:

• CensusVersion The version of Census that generated the current data for this device.
• IEVersion The version of Internet Explorer that is running on the device.

This event sends type and capacity data about the battery on the device, as well as the number of connected standby devices in use. The data collected with this event is used to help keep Windows secure and up to date.

The following fields are available:

• InternalBatteryCapablities Represents information about what the battery is capable of doing.
• InternalBatteryCapacityCurrent Represents the battery's current fully charged capacity in mWh (or relative). Compare this value to DesignedCapacity  to estimate the battery's wear.
• InternalBatteryCapacityDesign Represents the theoretical capacity of the battery when new, in mWh.
• InternalBatteryNumberOfCharges Provides the number of battery charges. This is used when creating new products and validating that existing products meets targeted functionality performance.
• IsAlwaysOnAlwaysConnectedCapable Represents whether the battery enables the device to be AlwaysOnAlwaysConnected. Boolean value.

This event sends data about Azure presence, type, and cloud domain use in order to provide an understanding of the use and integration of devices in an enterprise, cloud, and server environment. The data collected with this event is used to help keep Windows secure.

The following fields are available:

• AzureOSIDPresent Represents the field used to identify an Azure machine.
• AzureVMType Represents whether the instance is Azure VM PAAS, Azure VM IAAS or any other VMs.
• CDJType Represents the type of cloud domain joined for the machine.
• CommercialId Represents the GUID for the commercial entity which the device is a member of.  Will be used to reflect insights back to customers.
• ContainerType The type of container, such as process or virtual machine hosted.
• HashedDomain The hashed representation of the user domain used for login.
• IsCloudDomainJoined Is this device joined to an Azure Active Directory (Azure AD) tenant? true/false
• IsDERequirementMet Represents if the device can do device encryption.
• IsDeviceProtected Represents if Device protected by BitLocker/Device Encryption
• IsDomainJoined Indicates whether a machine is joined to a domain.
• IsEDPEnabled Represents if Enterprise data protected on the device.
• IsMDMEnrolled Whether the device has been MDM Enrolled or not.
• MPNId Returns the Partner ID/MPN ID from Regkey. HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\DeployID
• SCCMClientId This ID correlate systems that send data to Compat Analytics (OMS) and other OMS based systems with systems in an enterprise Configuration Manager environment.
• ServerFeatures Represents the features installed on a Windows Server. This can be used by developers and administrators who need to automate the process of determining the features installed on a set of server computers.
• SystemCenterID The Configuration Manager ID is an anonymized one-way hash of the Active Directory Organization identifier.

This event sends data about the BIOS and startup embedded in the device. The data collected with this event is used to help keep Windows secure and up to date.

The following fields are available:

• FirmwareManufacturer Represents the manufacturer of the device's firmware (BIOS).
• FirmwareReleaseDate Represents the date the current firmware was released.
• FirmwareType Represents the firmware type. The various types can be unknown, BIOS, UEFI.
• FirmwareVersion Represents the version of the current firmware.

This event sends Windows Insider data from customers participating in improvement testing and feedback programs. The data collected with this event is used to help keep Windows secure and up to date.

The following fields are available:

• DeviceSampleRate The telemetry sample rate assigned to the device.
• EnablePreviewBuilds Used to enable Windows Insider builds on a device.
• FlightIds A list of the different Windows Insider builds on this device.
• FlightingBranchName The name of the Windows Insider branch currently used by the device.
• IsFlightsDisabled Represents if the device is participating in the Windows Insider program.
• MSA_Accounts Represents a list of hashed IDs of the Microsoft Accounts that are flighting (pre-release builds) on this device.
• SSRK Retrieves the mobile targeting settings.

This event sends data about the device, including hardware type, OEM brand, model line, model, telemetry level setting, and TPM support. The data collected with this event is used to help keep Windows secure and up to date.

The following fields are available:

• ActiveMicCount The number of active microphones attached to the device.
• ChassisType Represents the type of device chassis, such as desktop or low profile desktop. The possible values can range between 1 - 36.
• ComputerHardwareID Identifies a device class that is represented by a hash of different SMBIOS fields.
• DeviceColor Indicates a color of the device.
• DeviceForm Indicates the form as per the device classification.
• DeviceName The device name that is set by the user.
• DigitizerSupport Is a digitizer supported?
• DUID The device unique ID.
• InventoryId The device ID used for compatibility testing.
• OEMDigitalMarkerFileName The name of the file placed in the \Windows\system32\drivers directory that specifies the OEM and model name of the device.
• OEMManufacturerName The device manufacturer name. The OEMName for an inactive device is not reprocessed even if the clean OEM name is changed at a later date.
• OEMModelBaseBoard The baseboard model used by the OEM.
• OEMModelBaseBoardVersion Differentiates between developer and retail devices.
• OEMModelName The device model name.
• OEMModelNumber The device model number.
• OEMModelSKU The device edition that is defined by the manufacturer.
• OEMModelSystemFamily The system family set on the device by an OEM.
• OEMModelSystemVersion The system model version set on the device by the OEM.
• OEMOptionalIdentifier A Microsoft assigned value that represents a specific OEM subsidiary.
• OEMSerialNumber The serial number of the device that is set by the manufacturer.
• PhoneManufacturer The friendly name of the phone manufacturer.
• PowerPlatformRole The OEM preferred power management profile. It's used to help to identify the basic form factor of the device.
• SoCName The firmware manufacturer of the device.
• StudyID Used to identify retail and non-retail device.
• TelemetryLevel The telemetry level the user has opted into, such as Basic or Enhanced.
• TelemetrySettingAuthority Determines who set the telemetry level, such as GP, MDM, or the user.
• TPMVersion The supported Trusted Platform Module (TPM) on the device. If no TPM is present, the value is 0.
• VoiceSupported Does the device have a cellular radio capable of making voice calls?

This event sends data about the memory on the device, including ROM and RAM. The data collected with this event is used to help keep Windows secure and up to date.

The following fields are available:

• TotalPhysicalRAM Represents the physical memory (in MB).
• TotalVisibleMemory Represents the memory that is not reserved by the system.

This event sends data about the mobile and cellular network used by the device (mobile service provider, network, device ID, and service cost factors). The data collected with this event is used to help keep Windows secure and up to date.

The following fields are available:

• IMEI0 Represents the International Mobile Station Equipment Identity. This number is usually unique and used by the mobile operator to distinguish different phone hardware. Microsoft does not have access to mobile operator billing data so collecting this data does not expose or identify the user. The two fields represent phone with dual sim coverage.
• IMEI1 Represents the International Mobile Station Equipment Identity. This number is usually unique and used by the mobile operator to distinguish different phone hardware. Microsoft does not have access to mobile operator billing data so collecting this data does not expose or identify the user. The two fields represent phone with dual sim coverage.
• MCC0 Represents the Mobile Country Code (MCC). It used with the Mobile Network Code (MNC) to uniquely identify a mobile network operator. The two fields represent phone with dual sim coverage.
• MCC1 Represents the Mobile Country Code (MCC). It used with the Mobile Network Code (MNC) to uniquely identify a mobile network operator. The two fields represent phone with dual sim coverage.
• MEID Represents the Mobile Equipment Identity (MEID). MEID is a worldwide unique phone ID assigned to CDMA phones. MEID replaces electronic serial number (ESN), and is equivalent to IMEI for GSM and WCDMA phones. Microsoft does not have access to mobile operator billing data so collecting this data does not expose or identify the user.
• MNC0 Retrieves the Mobile Network Code (MNC). It used with the Mobile Country Code (MCC) to uniquely identify a mobile network operator. The two fields represent phone with dual sim coverage.
• MNC1 Retrieves the Mobile Network Code (MNC). It used with the Mobile Country Code (MCC) to uniquely identify a mobile network operator. The two fields represent phone with dual sim coverage.
• MobileOperatorBilling Represents the telephone company that provides services for mobile phone users.
• MobileOperatorCommercialized Represents which reseller and geography the phone is commercialized for. This is the set of values on the phone for who and where it was intended to be used. For example, the commercialized mobile operator code AT&T in the US would be ATT-US.
• MobileOperatorNetwork0 Represents the operator of the current mobile network that the device is used on. (AT&T, T-Mobile, Vodafone). The two fields represent phone with dual sim coverage.
• MobileOperatorNetwork1 Represents the operator of the current mobile network that the device is used on. (AT&T, T-Mobile, Vodafone). The two fields represent phone with dual sim coverage.
• NetworkAdapterGUID The GUID of the primary network adapter.
• NetworkCost Represents the network cost associated with a connection.
• SPN0 Retrieves the Service Provider Name (SPN). For example, these might be AT&T, Sprint, T-Mobile, or Verizon. The two fields represent phone with dual sim coverage.
• SPN1 Retrieves the Service Provider Name (SPN). For example, these might be AT&T, Sprint, T-Mobile, or Verizon. The two fields represent phone with dual sim coverage.

This event sends data about the operating system such as the version, locale, update service configuration, when and how it was originally installed, and whether it is a virtual device. The data collected with this event is used to help keep Windows secure and up to date.

The following fields are available:

• ActivationChannel Retrieves the retail license key or Volume license key for a machine.
• CompactOS Indicates if the Compact OS feature from Win10 is enabled.
• DeveloperUnlockStatus Represents if a device has been developer unlocked by the user or Group Policy.
• DeviceTimeZone The time zone that is set on the device. Example: Pacific Standard Time
• GenuineState Retrieves the ID Value specifying the OS Genuine check.
• InstallationType Retrieves the type of OS installation. (Clean, Upgrade, Reset, Refresh, Update).
• InstallLanguage The first language installed on the user machine.
• IsDeviceRetailDemo Retrieves if the device is running in demo mode.
• IsEduData Returns Boolean if the education data policy is enabled.
• IsPortableOperatingSystem Retrieves whether OS is running Windows-To-Go
• IsSecureBootEnabled Retrieves whether Boot chain is signed under UEFI.
• LanguagePacks The list of language packages installed on the device.
• LicenseStateReason Retrieves why (or how) a system is licensed or unlicensed. The HRESULT may indicate an error code that indicates a key blocked error, or it may indicate that we are running an OS License granted by the MS store.
• OA3xOriginalProductKey Retrieves the License key stamped by the OEM to the machine.
• OSEdition Retrieves the version of the current OS.
• OSInstallDateTime Retrieves the date the OS was installed using ISO 8601 (Date part) == yyyy-mm-dd
• OSInstallType Retrieves a numeric description of what install was used on the device i.e. clean, upgrade, refresh, reset, etc.
• OSOOBEDateTime Retrieves Out of Box Experience (OOBE) Date in Coordinated Universal Time (UTC).
• OSSKU Retrieves the Friendly Name of OS Edition.
• OSSubscriptionStatus Represents the existing status for enterprise subscription feature for PRO machines.
• OSSubscriptionTypeId Returns boolean for enterprise subscription feature for selected PRO machines.
• OSTimeZoneBiasInMins Retrieves the time zone set on machine.
• OSUILocale Retrieves the locale of the UI that is currently used by the OS.
• ProductActivationResult Returns Boolean if the OS Activation was successful.
• ProductActivationTime Returns the OS Activation time for tracking piracy issues.
• ProductKeyID2 Retrieves the License key if the machine is updated with a new license key.
• RACw7Id Retrieves the Microsoft Reliability Analysis Component (RAC) Win7 Identifier. RAC is used to monitor and analyze system usage and reliability.
• ServiceMachineIP Retrieves the IP address of the KMS host used for anti-piracy.
• ServiceMachinePort Retrieves the port of the KMS host used for anti-piracy.
• ServiceProductKeyID Retrieves the License key of the KMS
• SharedPCMode Returns Boolean for devices that have enabled the configuration EnableSharedPCMode.
• Signature Retrieves if it is a signature machine sold by Microsoft store.
• SLICStatus Whether a SLIC table exists on the device.
• SLICVersion Returns OS type/version from SLIC table.

This event sends data about the processor. The data collected with this event is used to help keep Windows secure and up to date.

The following fields are available:

• ProcessorArchitecture Retrieves the processor architecture of the installed operating system.
• ProcessorClockSpeed Retrieves the clock speed of the processor in MHz.
• ProcessorCores Retrieves the number of cores in the processor.
• ProcessorIdentifier The processor identifier of a manufacturer.
• ProcessorManufacturer Retrieves the name of the processor's manufacturer.
• ProcessorModel Retrieves the name of the processor model.
• ProcessorPhysicalCores Number of physical cores in the processor.
• SocketCount Number of physical CPU sockets of the machine.

This event provides information about security settings. The data collected with this event is used to help keep Windows secure and up to date.

This event is used to gather basic speech settings on the device. The data collected with this event is used to help keep Windows secure.

The following fields are available:

• AboveLockEnabled Cortana setting that represents if Cortana can be invoked when the device is locked.
• GPAllowInputPersonalization Indicates if a Group Policy setting has enabled speech functionalities.
• HolographicSpeechInputDisabled Holographic setting that represents if the attached HMD devices have speech functionality disabled by the user.
• HolographicSpeechInputDisabledRemote Indicates if a remote policy has disabled speech functionalities for the HMD devices.
• KWSEnabled Cortana setting that represents if a user has enabled the "Hey Cortana" keyword spotter (KWS).
• MDMAllowInputPersonalization Indicates if an MDM policy has enabled speech functionalities.
• RemotelyManaged Indicates if the device is being controlled by a remote administrator (MDM or Group Policy) in the context of speech functionalities.
• SpeakerIdEnabled Cortana setting that represents if keyword detection has been trained to try to respond to a single user's voice.
• SpeechServicesEnabled Windows setting that represents whether a user is opted-in for speech services on the device.

This event sends data about the total capacity of the system volume and primary disk. The data collected with this event is used to help keep Windows secure and up to date.

The following fields are available:

• PrimaryDiskTotalCapacity Retrieves the amount of disk space on the primary disk of the device in MB.
• PrimaryDiskType Retrieves an enumerator value of type STORAGE_BUS_TYPE that indicates the type of bus to which the device is connected. This should be used to interpret the raw device properties at the end of this structure (if any).
• SystemVolumeTotalCapacity Retrieves the size of the partition that the System volume is installed on in MB.

This event sends data about the current user's default preferences for browser and several of the most popular extensions and protocols. The data collected with this event is used to help keep Windows secure and up to date.

The following fields are available:

• DefaultApp The current user's default program selected for the following extension or protocol: .html, .htm, .jpg, .jpeg, .png, .mp3, .mp4, .mov, .pdf.
• DefaultBrowserProgId The ProgramId of the current user's default browser.

This event sends data about the logical/physical display size, resolution and number of internal/external displays, and VRAM on the system. The data collected with this event is used to help keep Windows secure and up to date.

The following fields are available:

• InternalPrimaryDisplayLogicalDPIX Retrieves the logical DPI in the x-direction of the internal display.
• InternalPrimaryDisplayLogicalDPIY Retrieves the logical DPI in the y-direction of the internal display.
• InternalPrimaryDisplayPhysicalDPIX Retrieves the physical DPI in the x-direction of the internal display.
• InternalPrimaryDisplayPhysicalDPIY Retrieves the physical DPI in the y-direction of the internal display.
• InternalPrimaryDisplayResolutionHorizontal Retrieves the number of pixels in the horizontal direction of the internal display.
• InternalPrimaryDisplayResolutionVertical Retrieves the number of pixels in the vertical direction of the internal display.
• InternalPrimaryDisplaySizePhysicalH Retrieves the physical horizontal length of the display in mm. Used for calculating the diagonal length in inches .
• InternalPrimaryDisplaySizePhysicalY Retrieves the physical vertical length of the display in mm. Used for calculating the diagonal length in inches
• InternalPrimaryDisplayType Represents the type of technology used in the monitor, such as Plasma, LED, LCOS, etc.
• NumberofExternalDisplays Retrieves the number of external displays connected to the machine
• NumberofInternalDisplays Retrieves the number of internal displays in a machine.
• VRAMDedicated Retrieves the video RAM in MB.
• VRAMDedicatedSystem Retrieves the amount of memory on the dedicated video card.
• VRAMSharedSystem Retrieves the amount of RAM memory that the video card can use.

This event sends data about the default app language, input, and display language preferences set by the user. The data collected with this event is used to help keep Windows secure and up to date.

The following fields are available:

• DefaultAppLanguage The current user Default App Language.
• DisplayLanguage The current user preferred Windows Display Language.
• HomeLocation The current user location, which is populated using GetUserGeoId() function.
• KeyboardInputLanguages The Keyboard input languages installed on the device.
• SpeechInputLanguages The Speech Input languages installed on the device.

This event sends data indicating whether virtualization is enabled on the device, and its various characteristics. The data collected with this event is used to help keep Windows secure and up to date.

The following fields are available:

• HyperVisor Retrieves whether the current OS is running on top of a Hypervisor.
• IOMMUPresent Represents if an input/output memory management unit (IOMMU) is present.
• IsVirtualDevice Retrieves that when the Hypervisor is Microsoft's Hyper-V Hypervisor or other Hv#1 Hypervisor, this field will be set to FALSE for the Hyper-V host OS and TRUE for any guest OS's. This field should not be relied upon for non-Hv#1 Hypervisors.
• SLATSupported Represents whether Second Level Address Translation (SLAT) is supported by the hardware.
• VirtualizationFirmwareEnabled Represents whether virtualization is enabled in the firmware.

This event sends data about the Windows update server and other App store policies. The data collected with this event is used to help keep Windows secure and up to date.

The following fields are available:

• AppraiserGatedStatus Indicates whether a device has been gated for upgrading.
• AppStoreAutoUpdate Retrieves the Appstore settings for auto upgrade. (Enable/Disabled).
• AppStoreAutoUpdateMDM Retrieves the App Auto Update value for MDM: 0 - Disallowed. 1 - Allowed. 2 - Not configured. Default: [2] Not configured
• AppStoreAutoUpdatePolicy Retrieves the Microsoft Store App Auto Update group policy setting
• DelayUpgrade Retrieves the Windows upgrade flag for delaying upgrades.
• OSRollbackCount The number of times feature updates have rolled back on the device.
• OSRolledBack A flag that represents when a feature update has rolled back during setup.
• OSUninstalled A flag that represents when a feature update is uninstalled on a device .
• OSWUAutoUpdateOptions Retrieves the auto update settings on the device.
• UninstallActive A flag that represents when a device has uninstalled a previous upgrade recently.
• UpdateServiceURLConfigured Retrieves if the device is managed by Windows Server Update Services (WSUS).
• WUDeferUpdatePeriod Retrieves if deferral is set for Updates.
• WUDeferUpgradePeriod Retrieves if deferral is set for Upgrades.
• WUDODownloadMode Retrieves whether DO is turned on and how to acquire/distribute updates Delivery Optimization (DO) allows users to deploy previously downloaded Windows Update (WU) updates to other devices on the same network.
• WUMachineId Retrieves the Windows Update (WU) Machine Identifier.
• WUPauseState Retrieves Windows Update setting to determine if updates are paused.
• WUServer Retrieves the HTTP(S) URL of the WSUS server that is used by Automatic Updates and API callers (by default).

This event sends data about the Xbox Console, such as Serial Number and DeviceId, to help keep Windows up to date.

The following fields are available:

• XboxConsolePreferredLanguage Retrieves the preferred language selected by the user on Xbox console.
• XboxConsoleSerialNumber Retrieves the serial number of the Xbox console.
• XboxLiveDeviceId Retrieves the unique device ID of the console.
• XboxLiveSandboxId Retrieves the developer sandbox ID if the device is internal to Microsoft.

Describes the properties of the running application. This extension could be populated by a client app or a web app.

The following fields are available:

• asId An integer value that represents the app session. This value starts at 0 on the first app launch and increments after each subsequent app launch per boot session.
• env The environment from which the event was logged.
• expId Associates a flight, such as an OS flight, or an experiment, such as a web site UX experiment, with an event.
• id Represents a unique identifier of the client application currently loaded in the process producing the event; and is used to group events together and understand usage pattern, errors by application.
• userId The userID as known by the application.
• ver Represents the version number of the application. Used to understand errors by Version, Usage by Version across an app.

Describes the properties of the container for events logged within a container.

The following fields are available:

• localId The device ID as known by the client.
• osVer The operating system version.
• type The container type. Examples: Process or VMHost

Describes properties related to the schema of the event.

The following fields are available:

• sig A common schema signature that identifies new and modified event schemas.

Describes the device-related fields.

The following fields are available:

• deviceClass Represents the classification of the device, the device “family”. For example, Desktop, Server, or Mobile.
• localId Represents a locally defined unique ID for the device, not the human readable device name. Most likely equal to the value stored at HKLM\Software\Microsoft\SQMClient\MachineId

Represents an envelope that contains all of the common data extensions.

The following fields are available:

• appId Represents a unique identifier of the client application currently loaded in the process producing the event; and is used to group events together and understand usage pattern, errors by application.
• appVer Represents the version number of the application. Used to understand errors by version and usage by version across an app.
• cV Represents the Correlation Vector: A single field for tracking partial order of related telemetry events across component boundaries.
• data Represents the optional unique diagnostic data for a particular event schema.
• epoch ID used to help distinguish events in the sequence by indicating the current boot session.
• ext_app Describes the properties of the running application. This extension could be populated by either a client app or a web app. See Common Data Extensions.app.
• ext_container Describes the properties of the container for events logged within a container. See Common Data Extensions.container.
• ext_cs Describes properties related to the schema of the event. See Common Data Extensions.cs.
• ext_device Describes the device-related fields. See Common Data Extensions.device.
• ext_os Describes the operating system properties that would be populated by the client. See Common Data Extensions.os.
• ext_user Describes the fields related to a user. See Common Data Extensions.user.
• ext_utc Describes the fields that might be populated by a logging library on Windows. See Common Data Extensions.utc.
• ext_xbl Describes the fields related to XBOX Live. See Common Data Extensions.xbl.
• flags Represents a collection of bits that describe how the event should be processed by the Connected User Experience and Telemetry component pipeline. The lowest-order byte is the event persistence. The next byte is the event latency.
• iKey Represents an ID for applications or other logical groupings of events.
• name Represents the uniquely qualified name for the event.
• os The operating system name.
• osVer The operating system version.
• popSample Represents the effective sample rate for this event at the time it was generated by a client.
• seqNum Used to track the absolute order of uploaded events.
• tags A header for semi-managed extensions.
• time Represents the event date time in Coordinated Universal Time (UTC) when the event was generated on the client. This should be in ISO 8601 format.
• ver Represents the major and minor version of the extension.

Describes some properties of the operating system.

The following fields are available:

• bootId An integer value that represents the boot session. This value starts at 0 on first boot after OS install and increments after every reboot.
• expId Represents the experiment ID. The standard for associating a flight, such as an OS flight (pre-release build), or an experiment, such as a web site UX experiment, with an event is to record the flight / experiment IDs in Part A of the common schema.
• locale Represents the locale of the operating system.

Describes the fields related to a user.

The following fields are available:

• authId This is an ID of the user associated with this event that is deduced from a token such as a Microsoft Account ticket or an XBOX token.
• localId Represents a unique user identity that is created locally and added by the client. This is not the user's account ID.

Describes the properties that could be populated by a logging library on Windows.

The following fields are available:

• aId Represents the ETW ActivityId. Logged via TraceLogging or directly via ETW.
• bSeq Upload buffer sequence number in the format: buffer identifier:sequence number
• cat Represents a bitmask of the ETW Keywords associated with the event.
• cpId The composer ID, such as Reference, Desktop, Phone, Holographic, Hub, IoT Composer.
• flags Represents the bitmap that captures various Windows specific flags.
• mon Combined monitor and event sequence numbers in the format: monitor sequence : event sequence
• op Represents the ETW Op Code.
• raId Represents the ETW Related ActivityId. Logged via TraceLogging or directly via ETW.
• sqmId The Windows SQM (Software Quality Metrics—a precursor of Windows 10 Diagnostic Data collection) device identifier.
• stId Represents the Scenario Entry Point ID. This is a unique GUID for each event in a diagnostic scenario. This used to be Scenario Trigger ID.
• tickets An array of strings that refer back to a key in the X-Tickets http header that the client uploaded along with a batch of events.

Describes the fields that are related to XBOX Live.

The following fields are available:

• claims Any additional claims whose short claim name hasn't been added to this structure.
• did XBOX device ID
• dty XBOX device type
• dvr The version of the operating system on the device.
• eid A unique ID that represents the developer entity.
• exp Expiration time
• ip The IP address of the client device.
• nbf Not before time
• pid A comma separated list of PUIDs listed as base10 numbers.
• sbx XBOX sandbox identifier
• sid The service instance ID.
• sty The service type.
• tid The XBOX Live title ID.
• tvr The XBOX Live title version.
• uts A bit field, with 2 bits being assigned to each user ID listed in xid. This field is omitted if all users are retail accounts.
• xid A list of base10-encoded XBOX User IDs.

Describes the installation state for all hardware and software components available on a particular device.

The following fields are available:

• action The change that was invoked on a device inventory object.
• inventoryId Device ID used for Compatibility testing
• objectInstanceId Object identity which is unique within the device scope.
• objectType Indicates the object type that the event applies to.
• syncId A string used to group StartSync, EndSync, Add, and Remove operations that belong together. This field is unique by Sync period and is used to disambiguate in situations where multiple agents perform overlapping inventories for the same object.

This event provides information about the results of installing or uninstalling optional Windows content from Windows Update. The data collected with this event is used to help keep Windows up to date.

This event provides information about the results of installing optional Windows content that requires a reboot to keep Windows up to date.

This event reports on the performance and reliability results of installing Servicing content from Windows Update to keep Windows up to date.

This event reports the results of enabling or disabling optional Windows Content to keep Windows up to date.

The following fields are available:

• applicableUpdateState Indicates the highest applicable state of the optional content.
• buildVersion The build version of the package being installed.
• clientId The name of the application requesting the optional content change.
• downloadSource Indicates if optional content was obtained from Windows Update or a locally accessible file.
• downloadtimeInSeconds Indicates if optional content was obtained from Windows Update or a locally accessible file.
• executionID A unique ID used to identify events associated with a single servicing operation and not reused for future operations.
• executionSequence A counter that tracks the number of servicing operations attempted on the device.
• firstMergedExecutionSequence The value of a pervious executionSequence counter that is being merged with the current operation, if applicable.
• firstMergedID A unique ID of a pervious servicing operation that is being merged with this operation, if applicable.
• hrDownloadResult The return code of the download operation.
• hrStatusUpdate The return code of the servicing operation.
• identityHash A pseudonymized (hashed) identifier for the Windows Package that is being installed or uninstalled.
• initiatedOffline Indicates whether the operation was performed against an offline Windows image file or a running instance of Windows.
• majorVersion The major version of the package being installed.
• minorVersion The minor version of the package being installed.
• packageArchitecture The architecture of the package being installed.
• packageLanguage The language of the package being installed.
• packageName The name of the package being installed.
• rebootRequired Indicates whether a reboot is required to complete the operation.
• revisionVersion The revision number of the package being installed.
• stackBuild The build number of the servicing stack binary performing the installation.
• stackMajorVersion The major version number of the servicing stack binary performing the installation.
• stackMinorVersion The minor version number of the servicing stack binary performing the installation.
• stackRevision The revision number of the servicing stack binary performing the installation.
• updateName The name of the optional Windows Operation System feature being enabled or disabled.
• updateStartState A value indicating the state of the optional content before the operation started.
• updateTargetState A value indicating the desired state of the optional content.

This event sends tracking data about the reliability of interactions with Windows spotlight content, to help keep Windows up to date.

The following fields are available:

• creativeId A serialized string containing the ID of the offer being rendered, the ID of the current rotation period, the ID of the surface/ring/market combination, the offer index in the current branch, the ID of the batch, the rotation period length, and the expiration timestamp.
• eventToken In there are multiple item offers, such as Start tiles, this indicates which tile the event corresponds to.
• eventType A code that indicates the type of creative event, such a impression, click, positive feedback, negative feedback, etc.
• placementId Name of surface, such as LockScreen or Start.

This event sends aggregated client health data, summarizing information about the state of offers on a device, to help keep Windows up to date.

The following fields are available:

• dataVersion Schema version of the event that is used to determine what serialized content is available for placementReportedInfo and trackingInfo fields.
• healthResult A code that identifies user account health status as Unknown, Healthy, Unhealthy.
• healthStateFlags A code that represents a set of flags used to group devices in a health/unhealthy way. For example, Unhealthy, Healthy, RefreshNotScheduled, EmptyResponse, RenderedDefault, RenderFailure, RenderDelayed, and CacheEmpty.
• placementHealthId A code that represents which surface's health is being reported. For example, Default, LockScreen, LockScreenOverlay, StartMenu, SoftLanding, DefaultStartLayout1, DefaultStartLayout2, OemPreInstalledApps, FeatureManagement, SilentInstalledApps, NotificationChannel, SuggestedPenAppsSubscribedContent, TestAppSubscribedContent, OneDriveSyncNamespaceSubscribedContent, OneDriveLocalNamespaceSubscribedContent, OneDriveSyncNamespaceInternalSubscribedContent, and OneDriveLocalNamespaceInternalSubscribedContent.
• placementReportedInfo Serialized information that contains domain-specific health information written by each surface, such as lastUpportunityTime, lastOpportunityReportedTime, expectedExpirationTime, and rotationPeriod.
• trackingInfo Serialized information that contains domain-specific health information written by the content delivery manager, such as lastRefreshTime, nextRefreshTime, nextUpdateTime,renderPriorToLastOpportunityTime, lastRenderTime, lastImpressionTime, lastRulesRegistrationTime, registrationTime, lastRefreshBatchCount, lastEligibleCreativeCount, availableAppSlotCount, placeholderAppSlotCount, lastRenderSuccess, lastRenderDefault, isEnabled.

This event sends data about the opt-out state of a device or user that uses Windows spotlight, to help keep Windows up to date.

The following fields are available:

• isEnabled Indicates if the surface is enable to receive offers.
• lastImpressionTime The time when the last offer was seen.
• lastRenderedCreativeId ID of the last offer rendered by the surface.
• lastRenderedTime The time that the last offer was rendered.
• nextRotationTime The time in which the next offer will be rendered.
• placementName Name of surface, such as LockScreen or Start.
• placementStateReportFlags Flags that represent if the surface is capable of receiving offers, such as off by edition, off by Group Policy, off by user choice.
• selectedPlacementId ID of the surface/ring/markey combination, such as Lock-Internal-en-US.

This event is fired by UTC at state transitions to signal what data we are allowed to collect. The data collected with this event is used to help keep Windows up to date, secure, and performing properly.

The following fields are available:

• CanAddMsaToMsTelemetry True if UTC is allowed to add MSA user identity onto telemetry from the OS provider groups.
• CanCollectAnyTelemetry True if UTC is allowed to collect non-OS telemetry. Non-OS telemetry is responsible for providing its own opt-in mechanism.
• CanCollectCoreTelemetry True if UTC is allowed to collect data which is tagged with both MICROSOFT_KEYWORD_CRITICAL_DATA and MICROSOFT_EVENTTAG_CORE_DATA.
• CanCollectHeartbeats True if UTC is allowed to collect heartbeats.
• CanCollectOsTelemetry True if UTC is allowed to collect telemetry from the OS provider groups (often called Microsoft Telemetry).
• CanPerformDiagnosticEscalations True if UTC is allowed to perform all scenario escalations.
• CanPerformTraceEscalations True if UTC is allowed to perform scenario escalations with tracing actions.
• CanReportScenarios True if UTC is allowed to load and report scenario completion, failure, and cancellation events.
• PreviousPermissions Bitmask representing the previously configured permissions since the telemetry opt-in level was last changed.
• TransitionFromEverythingOff True if this transition is moving from not allowing core telemetry to allowing core telemetry.

This event is fired by UTC at startup to signal what data we are allowed to collect. The data collected with this event is used to help keep Windows up to date, secure, and performing properly.

The following fields are available:

• CanAddMsaToMsTelemetry True if UTC is allowed to add MSA user identity onto telemetry from the OS provider groups.
• CanCollectAnyTelemetry True if UTC is allowed to collect non-OS telemetry. Non-OS telemetry is responsible for providing its own opt-in mechanism.
• CanCollectCoreTelemetry True if UTC is allowed to collect data which is tagged with both MICROSOFT_KEYWORD_CRITICAL_DATA and MICROSOFT_EVENTTAG_CORE_DATA.
• CanCollectHeartbeats True if we can collect heartbeat telemetry, false otherwise.
• CanCollectOsTelemetry True if UTC is allowed to collect telemetry from the OS provider groups (often called Microsoft Telemetry).
• CanPerformDiagnosticEscalations True if UTC is allowed to perform all scenario escalations.
• CanPerformTraceEscalations True if UTC is allowed to perform scenario escalations with tracing actions.
• CanReportScenarios True if we can report scenario completions, false otherwise.
• PreviousPermissions Bitmask representing the previously configured permissions since the telemetry client was last started.
• TransitionFromEverythingOff True if this transition is moving from not allowing core telemetry to allowing core telemetry.

This event sends data about the connectivity status of the Connected User Experience and Telemetry component that uploads telemetry events. If an unrestricted free network (such as Wi-Fi) is available, this event updates the last successful upload time. Otherwise, it checks whether a Connectivity Heartbeat event was fired in the past 24 hours, and if not, it sends an event. A Connectivity Heartbeat event is also sent when a device recovers from costed network to free network. This event is fired by UTC during periods of no network as a heartbeat signal, to keep Windows secure and up to date.

The following fields are available:

• CensusExitCode Returns last execution codes from census client run.
• CensusStartTime Returns timestamp corresponding to last successful census run.
• CensusTaskEnabled Returns Boolean value for the census task (Enable/Disable) on client machine.
• LastConnectivityLossTime Retrieves the last time the device lost free network.
• NetworkState Retrieves the network state: 0 = No network. 1 = Restricted network. 2 = Free network.
• NoNetworkTime Retrieves the time spent with no network (since the last time) in seconds.
• RestrictedNetworkTime The total number of seconds with restricted network during this heartbeat period.

This event sends data about the health and quality of the diagnostic data from the given device, to help keep Windows up to date. It also enables data analysts to determine how 'trusted' the data is from a given device.

The following fields are available:

• AgentConnectionErrorsCount The number of non-timeout errors associated with the host/agent channel.
• CensusExitCode The last exit code of the Census task.
• CensusStartTime The time of the last Census run.
• CensusTaskEnabled Indicates whether Census is enabled.
• ConsumerDroppedCount The number of events dropped by the consumer layer of the telemetry client.
• CriticalDataDbDroppedCount The number of critical data sampled events that were dropped at the database layer.
• CriticalDataThrottleDroppedCount The number of critical data sampled events that were dropped because of throttling.
• CriticalOverflowEntersCounter The number of times a critical overflow mode was entered into the event database.
• DbCriticalDroppedCount The total number of dropped critical events in the event database.
• DbDroppedCount The number of events that were dropped because the database was full.
• DecodingDroppedCount The number of events dropped because of decoding failures.
• EnteringCriticalOverflowDroppedCounter The number of events that was dropped because a critical overflow mode was initiated.
• EtwDroppedBufferCount The number of buffers dropped in the CUET ETW session.
• EtwDroppedCount The number of events dropped by the ETW layer of the telemetry client.
• EventSubStoreResetCounter The number of times the event database was reset.
• EventSubStoreResetSizeSum The total size of the event database across all resets reports in this instance.
• EventsUploaded The number of events that have been uploaded.
• Flags Flags that indicate device state, such as network, battery, and opt-in state.
• FullTriggerBufferDroppedCount The number of events that were dropped because the trigger buffer was full.
• HeartBeatSequenceNumber A monotonically increasing heartbeat counter.
• InvalidHttpCodeCount The number of invalid HTTP codes received from Vortex.
• LastAgentConnectionError The last non-timeout error that happened in the host/agent channel.
• LastEventSizeOffender The name of the last event that exceeded the maximum event size.
• LastInvalidHttpCode The last invalid HTTP code received from Vortex.
• MaxActiveAgentConnectionCount The maximum number of active agents during this heartbeat timeframe.
• MaxInUseScenarioCounter The soft maximum number of scenarios loaded by the Connected User Experience and Telemetry component.
• PreviousHeartBeatTime The time of last heartbeat event. This allows chaining of events.
• SettingsHttpAttempts The number of attempts to contact the OneSettings service.
• SettingsHttpFailures The number of failures from contacting the OneSettings service.
• ThrottledDroppedCount The number of events dropped due to throttling of noisy providers.
• UploaderDroppedCount The number of events dropped by the uploader layer of the telemetry client.
• VortexFailuresTimeout The number of timeout failures received from Vortex.
• VortexHttpAttempts The number of attempts to contact the Vortex service.
• VortexHttpFailures4xx The number of 400-499 error codes received from Vortex.
• VortexHttpFailures5xx The number of 500-599 error codes received from Vortex.

This event is the telemetry client ARIA heartbeat.

This event is sent by the universal telemetry client (UTC) as a heartbeat signal for Sense.

This event is triggered when UTC determines it needs to send information about personalization settings of the user.

This event sends basic GPU and display driver information to keep Windows and display drivers up-to-date.

The following fields are available:

• aiSeqId The event sequence ID.
• bootId The system boot ID.
• ComputePreemptionLevel The maximum preemption level supported by GPU for compute payload.
• DedicatedSystemMemoryB The amount of system memory dedicated for GPU use (in bytes).
• DedicatedVideoMemoryB The amount of dedicated VRAM of the GPU (in bytes).
• DisplayAdapterLuid The display adapter LUID.
• DriverDate The date of the display driver.
• DriverRank The rank of the display driver.
• DriverVersion The display driver version.
• GPUDeviceID The GPU device ID.
• GPUPreemptionLevel The maximum preemption level supported by GPU for graphics payload.
• GPURevisionID The GPU revision ID.
• GPUVendorID The GPU vendor ID.
• InterfaceId The GPU interface ID.
• IsDisplayDevice Does the GPU have displaying capabilities?
• IsHybridDiscrete Does the GPU have discrete GPU capabilities in a hybrid device?
• IsHybridIntegrated Does the GPU have integrated GPU capabilities in a hybrid device?
• IsLDA Is the GPU comprised of Linked Display Adapters?
• IsMiracastSupported Does the GPU support Miracast?
• IsMismatchLDA Is at least one device in the Linked Display Adapters chain from a different vendor?
• IsMPOSupported Does the GPU support Multi-Plane Overlays?
• IsMsMiracastSupported Are the GPU Miracast capabilities driven by a Microsoft solution?
• IsPostAdapter Is this GPU the POST GPU in the device?
• IsRenderDevice Does the GPU have rendering capabilities?
• IsSoftwareDevice Is this a software implementation of the GPU?
• MeasureEnabled Is the device listening to MICROSOFT_KEYWORD_MEASURES?
• NumVidPnSources The number of supported display output sources.
• NumVidPnTargets The number of supported display output targets.
• SharedSystemMemoryB The amount of system memory shared by GPU and CPU (in bytes).
• SubSystemID The subsystem ID.
• SubVendorID The GPU sub vendor ID.
• TelemetryEnabled Is the device listening to MICROSOFT_KEYWORD_TELEMETRY?
• TelInvEvntTrigger What triggered this event to be logged? Example: 0 (GPU enumeration) or 1 (DxgKrnlTelemetry provider toggling)
• version The event version.
• WDDMVersion The Windows Display Driver Model version.

This event returns information about how many resources and of what type are in the server cluster. This data is collected to keep Windows Server safe, secure, and up to date. The data includes information about whether hardware is configured correctly, if the software is patched correctly, and assists in preventing crashes by attributing issues (like fatal errors) to workloads and system configurations.

The following fields are available:

• autoAssignSite The cluster parameter: auto site.
• autoBalancerLevel The cluster parameter: auto balancer level.
• autoBalancerMode The cluster parameter: auto balancer mode.
• blockCacheSize The configured size of the block cache.
• ClusterAdConfiguration The ad configuration of the cluster.
• clusterAdType The cluster parameter: mgmt_point_type.
• clusterDumpPolicy The cluster configured dump policy.
• clusterFunctionalLevel The current cluster functional level.
• clusterGuid The unique identifier for the cluster.
• clusterWitnessType The witness type the cluster is configured for.
• countNodesInSite The number of nodes in the cluster.
• crossSiteDelay The cluster parameter: CrossSiteDelay.
• crossSiteThreshold The cluster parameter: CrossSiteThreshold.
• crossSubnetDelay The cluster parameter: CrossSubnetDelay.
• crossSubnetThreshold The cluster parameter: CrossSubnetThreshold.
• csvCompatibleFilters The cluster parameter: ClusterCsvCompatibleFilters.
• csvIncompatibleFilters The cluster parameter: ClusterCsvIncompatibleFilters.
• csvResourceCount The number of resources in the cluster.
• currentNodeSite The name configured for the current site for the cluster.
• dasModeBusType The direct storage bus type of the storage spaces.
• downLevelNodeCount The number of nodes in the cluster that are running down-level.
• drainOnShutdown Specifies whether a node should be drained when it is shut down.
• dynamicQuorumEnabled Specifies whether dynamic Quorum has been enabled.
• enforcedAntiAffinity The cluster parameter: enforced anti affinity.
• genAppNames The win32 service name of a clustered service.
• genSvcNames The command line of a clustered genapp.
• hangRecoveryAction The cluster parameter: hang recovery action.
• hangTimeOut Specifies the “hang time out” parameter for the cluster.
• isCalabria Specifies whether storage spaces direct is enabled.
• isMixedMode Identifies if the cluster is running with different version of OS for nodes.
• isRunningDownLevel Identifies if the current node is running down-level.
• logLevel Specifies the granularity that is logged in the cluster log.
• logSize Specifies the size of the cluster log.
• lowerQuorumPriorityNodeId The cluster parameter: lower quorum priority node ID.
• minNeverPreempt The cluster parameter: minimum never preempt.
• minPreemptor The cluster parameter: minimum preemptor priority.
• netftIpsecEnabled The parameter: netftIpsecEnabled.
• NodeCount The number of nodes in the cluster.
• nodeId The current node number in the cluster.
• nodeResourceCounts Specifies the number of node resources.
• nodeResourceOnlineCounts Specifies the number of node resources that are online.
• numberOfSites The number of different sites.
• numNodesInNoSite The number of nodes not belonging to a site.
• plumbAllCrossSubnetRoutes The cluster parameter: plumb all cross subnet routes.
• preferredSite The preferred site location.
• privateCloudWitness Specifies whether a private cloud witness exists for this cluster.
• quarantineDuration The quarantine duration.
• quarantineThreshold The quarantine threshold.
• quorumArbitrationTimeout In the event of an arbitration event, this specifies the quorum timeout period.
• resiliencyLevel Specifies the level of resiliency.
• resourceCounts Specifies the number of resources.
• resourceTypeCounts Specifies the number of resource types in the cluster.
• resourceTypes Data representative of each resource type.
• resourceTypesPath Data representative of the DLL path for each resource type.
• sameSubnetDelay The cluster parameter: same subnet delay.
• sameSubnetThreshold The cluster parameter: same subnet threshold.
• secondsInMixedMode The amount of time (in seconds) that the cluster has been in mixed mode (nodes with different operating system versions in the same cluster).
• securityLevel The cluster parameter: security level.
• sharedVolumeBlockCacheSize Specifies the block cache size for shared for shared volumes.
• shutdownTimeoutMinutes Specifies the amount of time it takes to time out when shutting down.
• upNodeCount Specifies the number of nodes that are up (online).
• useClientAccessNetworksForCsv The cluster parameter: use client access networks for CSV.
• vmIsolationTime The cluster parameter: VM isolation time.
• witnessDatabaseWriteTimeout Specifies the timeout period for writing to the quorum witness database.

This event sends data about crashes for both native and managed applications, to help keep Windows up to date. The data includes information about the crashing process and a summary of its exception record. It does not contain any Watson bucketing information. The bucketing information is recorded in a Windows Error Reporting (WER) event that is generated when the WER client reports the crash to the Watson service, and the WER event will contain the same ReportID (see field 14 of crash event, field 19 of WER event) as the crash event for the crash being reported. AppCrash is emitted once for each crash handled by WER (e.g. from an unhandled exception or FailFast or ReportException). Note that Generic Watson event types (e.g. from PLM) that may be considered crashes" by a user DO NOT emit this event.

The following fields are available:

• AppName The name of the app that has crashed.
• AppSessionGuid GUID made up of process ID and is used as a correlation vector for process instances in the telemetry backend.
• AppTimeStamp The date/time stamp of the app.
• AppVersion The version of the app that has crashed.
• ExceptionCode The exception code returned by the process that has crashed.
• ExceptionOffset The address where the exception had occurred.
• Flags Flags indicating how reporting is done. For example, queue the report, do not offer JIT debugging, or do not terminate the process after reporting.
• ModName Exception module name (e.g. bar.dll).
• ModTimeStamp The date/time stamp of the module.
• ModVersion The version of the module that has crashed.
• PackageFullName Store application identity.
• PackageRelativeAppId Store application identity.
• ProcessArchitecture Architecture of the crashing process, as one of the PROCESSOR_ARCHITECTURE_* constants: 0: PROCESSOR_ARCHITECTURE_INTEL. 5: PROCESSOR_ARCHITECTURE_ARM. 9: PROCESSOR_ARCHITECTURE_AMD64. 12: PROCESSOR_ARCHITECTURE_ARM64.
• ProcessCreateTime The time of creation of the process that has crashed.
• ProcessId The ID of the process that has crashed.
• ReportId A GUID used to identify the report. This can used to track the report across Watson.
• TargetAppId The kernel reported AppId of the application being reported.
• TargetAppVer The specific version of the application being reported
• TargetAsId The sequence number for the hanging process.

This event sends basic metadata about the starting point of uninstalling a feature update, which helps ensure customers can safely revert to a well-known state if the update caused any problems.

This event sends data about hangs for both native and managed applications, to help keep Windows up to date. It does not contain any Watson bucketing information. The bucketing information is recorded in a Windows Error Reporting (WER) event that is generated when the WER client reports the hang to the Watson service, and the WER event will contain the same ReportID (see field 13 of hang event, field 19 of WER event) as the hang event for the hang being reported. AppHang is reported only on PC devices. It handles classic Win32 hangs and is emitted only once per report. Some behaviors that may be perceived by a user as a hang are reported by app managers (e.g. PLM/RM/EM) as Watson Generics and will not produce AppHang events.

The following fields are available:

• AppName The name of the app that has hung.
• AppSessionGuid GUID made up of process ID used as a correlation vector for process instances in the telemetry backend.
• AppVersion The version of the app that has hung.
• PackageFullName Store application identity.
• PackageRelativeAppId Store application identity.
• ProcessArchitecture Architecture of the hung process, as one of the PROCESSOR_ARCHITECTURE_* constants: 0: PROCESSOR_ARCHITECTURE_INTEL. 5: PROCESSOR_ARCHITECTURE_ARM. 9: PROCESSOR_ARCHITECTURE_AMD64. 12: PROCESSOR_ARCHITECTURE_ARM64.
• ProcessCreateTime The time of creation of the process that has hung.
• ProcessId The ID of the process that has hung.
• ReportId A GUID used to identify the report. This can used to track the report across Watson.
• TargetAppId The kernel reported AppId of the application being reported.
• TargetAppVer The specific version of the application being reported.
• TargetAsId The sequence number for the hanging process.
• TypeCode Bitmap describing the hang type.
• WaitingOnAppName If this is a cross process hang waiting for an application, this has the name of the application.
• WaitingOnAppVersion If this is a cross process hang, this has the version of the application for which it is waiting.
• WaitingOnPackageFullName If this is a cross process hang waiting for a package, this has the full name of the package for which it is waiting.
• WaitingOnPackageRelativeAppId If this is a cross process hang waiting for a package, this has the relative application ID of the package.

This event provides the list of values sent by each object type. The data collected with this event is used to keep Windows performing properly.

The following fields are available:

• Key The object type being described.
• Value The number of objects of this type that were sent.

This event provides a device's internal application compatible ID, a vendor-defined identification that Windows uses to match a device to an INF file. A device can have a list of compatible IDs associated with it. The data collected with this event is used to keep Windows performing properly.

The following fields are available:

• Order The index of the array of compatible IDs for the device.
• Value The array of compatible IDs for the device.

This event provides a device's internal hardware ID, a vendor-defined identification that Windows uses to match a device to an INF file. In most cases, a device has associated with it a list of hardware IDs. The data collected with this event is used to keep Windows performing properly.

The following fields are available:

• Order The index of the array of internal hardware IDs for the device.
• Value The array of internal hardware IDs for the device.

This event indicates the date the add/remove program (ARP) entry was last modified by an update. The data collected with this event is used to keep Windows performing properly.

The following fields are available:

• Order The index of the ordered array.
• Value The value contained in the ordered array.

This event provides the application installation date from the linked file. The data collected with this event is used to keep Windows performing properly.

The following fields are available:

• Order The index of the ordered array.
• Value The value contained in the ordered array.

This event provides the install date from the Microsoft installer (MSI) database. The data collected with this event is used to keep Windows performing properly.

The following fields are available:

• Order The index of the ordered array.
• Value The value contained in the ordered array.

This event captures basic checksum data about the device inventory items stored in the cache for use in validating data completeness for Microsoft.Windows.Inventory.Core events. The fields in this event may change over time, but they will always represent a count of a given object. The data collected with this event is used to keep Windows performing properly.

The following fields are available:

• Device A count of device objects in cache.
• DeviceCensus A count of devicecensus objects in cache.
• DriverPackageExtended A count of driverpackageextended objects in cache.
• File A count of file objects in cache.
• FileSigningInfo A count of file signing objects in cache.
• Generic A count of generic objects in cache.
• HwItem A count of hwitem objects in cache.
• InventoryApplication A count of application objects in cache.
• InventoryApplicationFile A count of application file objects in cache.
• InventoryDeviceContainer A count of device container objects in cache.
• InventoryDeviceInterface A count of Plug and Play device interface objects in cache.
• InventoryDeviceMediaClass A count of device media objects in cache.
• InventoryDevicePnp A count of device Plug and Play objects in cache.
• InventoryDriverBinary A count of driver binary objects in cache.
• InventoryDriverPackage A count of device objects in cache.
• Metadata A count of metadata objects in cache.
• Orphan A count of orphan file objects in cache.
• Programs A count of program objects in cache.

This event sends inventory component versions for the Device Inventory data. The data collected with this event is used to keep Windows performing properly.

The following fields are available:

• aeinv The version of the App inventory component.
• aeinv.dll The version of the App inventory component.
• devinv The file version of the Device inventory component.
• devinv.dll The file version of the Device inventory component.

This event enumerates the signatures of files, either driver packages or application executables. For driver packages, this data is collected on demand via Telecommand to limit it only to unrecognized driver packages, saving time for the client and space on the server. For applications, this data is collected for up to 10 random executables on a system. The data collected with this event is used to keep Windows performing properly.

This event includes fields from Ms.Device.DeviceInventoryChange.

The following fields are available:

• CatalogSigners Signers from catalog. Each signer starts with Chain.
• DriverPackageStrongName Optional. Available only if FileSigningInfo is collected on a driver package.
• EmbeddedSigners Embedded signers. Each signer starts with Chain.
• FileName The file name of the file whose signatures are listed.
• FileType Either exe or sys, depending on if a driver package or application executable.
• InventoryVersion The version of the inventory file generating the events.
• Thumbprint Comma separated hash of the leaf node of each signer. Semicolon is used to separate CatalogSigners from EmbeddedSigners. There will always be a trailing comma.

This event sends basic metadata about an application on the system. The data collected with this event is used to keep Windows performing properly and up to date.

This event includes fields from Ms.Device.DeviceInventoryChange.

The following fields are available:

• HiddenArp Indicates whether a program hides itself from showing up in ARP.
• InstallDate The date the application was installed (a best guess based on folder creation date heuristics).
• InstallDateArpLastModified The date of the registry ARP key for a given application. Hints at install date but not always accurate. Passed as an array. Example: 4/11/2015 00:00:00 See InstallDateArpLastModified.
• InstallDateFromLinkFile The estimated date of install based on the links to the files. Passed as an array. See InstallDateFromLinkFile.
• InstallDateMsi The install date if the application was installed via Microsoft Installer (MSI). Passed as an array. See InstallDateMsi.
• InventoryVersion The version of the inventory file generating the events.
• Language The language code of the program.
• MsiPackageCode A GUID that describes the MSI Package. Multiple 'Products' (apps) can make up an MsiPackage.
• MsiProductCode A GUID that describe the MSI Product.
• Name The name of the application.
• OSVersionAtInstallTime The four octets from the OS version at the time of the application's install.
• PackageFullName The package full name for a Store application.
• ProgramInstanceId A hash of the file IDs in an app.
• Publisher The Publisher of the application. Location pulled from depends on the 'Source' field.
• RootDirPath The path to the root directory where the program was installed.
• Source How the program was installed (for example, ARP, MSI, Appx).
• StoreAppType A sub-classification for the type of Microsoft Store app, such as UWP or Win8StoreApp.
• Type One of ("Application", "Hotfix", "BOE", "Service", "Unknown"). Application indicates Win32 or Appx app, Hotfix indicates app updates (KBs), BOE indicates it's an app with no ARP or MSI entry, Service indicates that it is a service. Application and BOE are the ones most likely seen.
• Version The version number of the program.

This event represents what drivers an application installs. The data collected with this event is used to keep Windows performing properly.

The InventoryApplicationDriverStartSync event indicates that a new set of InventoryApplicationDriverStartAdd events will be sent. The data collected with this event is used to keep Windows performing properly.

This event provides the basic metadata about the frameworks an application may depend on. The data collected with this event is used to keep Windows performing properly.

This event indicates that a new set of InventoryApplicationFrameworkAdd events will be sent. The data collected with this event is used to keep Windows performing properly.

This event indicates that a new set of InventoryDevicePnpAdd events will be sent. The data collected with this event is used to keep Windows performing properly.

This event includes fields from Ms.Device.DeviceInventoryChange.

The following fields are available:

• InventoryVersion The version of the inventory file generating the events.

This event indicates that a new set of InventoryApplicationAdd events will be sent. The data collected with this event is used to keep Windows performing properly.

This event includes fields from Ms.Device.DeviceInventoryChange.

The following fields are available:

• InventoryVersion The version of the inventory file generating the events.

This event sends basic metadata about a device container (such as a monitor or printer as opposed to a Plug and Play device). The data collected with this event is used to help keep Windows up to date and to keep Windows performing properly.

This event includes fields from Ms.Device.DeviceInventoryChange.

The following fields are available:

• Categories A comma separated list of functional categories in which the container belongs.
• DiscoveryMethod The discovery method for the device container.
• FriendlyName The name of the device container.
• InventoryVersion The version of the inventory file generating the events.
• IsActive Is the device connected, or has it been seen in the last 14 days?
• IsConnected For a physically attached device, this value is the same as IsPresent. For wireless a device, this value represents a communication link.
• IsMachineContainer Is the container the root device itself?
• IsNetworked Is this a networked device?
• IsPaired Does the device container require pairing?
• Manufacturer The manufacturer name for the device container.
• ModelId A unique model ID.
• ModelName The model name.
• ModelNumber The model number for the device container.
• PrimaryCategory The primary category for the device container.

This event indicates that the InventoryDeviceContainer object is no longer present. The data collected with this event is used to keep Windows performing properly.

This event includes fields from Ms.Device.DeviceInventoryChange.

The following fields are available:

• InventoryVersion The version of the inventory file generating the events.

This event indicates that a new set of InventoryDeviceContainerAdd events will be sent. The data collected with this event is used to keep Windows performing properly.

This event includes fields from Ms.Device.DeviceInventoryChange.

The following fields are available:

• InventoryVersion The version of the inventory file generating the events.

This event retrieves information about what sensor interfaces are available on the device. The data collected with this event is used to keep Windows performing properly.

This event includes fields from Ms.Device.DeviceInventoryChange.

The following fields are available:

• Accelerometer3D Indicates if an Accelerator3D sensor is found.
• ActivityDetection Indicates if an Activity Detection sensor is found.
• AmbientLight Indicates if an Ambient Light sensor is found.
• Barometer Indicates if a Barometer sensor is found.
• Custom Indicates if a Custom sensor is found.
• FloorElevation Indicates if a Floor Elevation sensor is found.
• GeomagneticOrientation Indicates if a Geo Magnetic Orientation sensor is found.
• GravityVector Indicates if a Gravity Detector sensor is found.
• Gyrometer3D Indicates if a Gyrometer3D sensor is found.
• Humidity Indicates if a Humidity sensor is found.
• InventoryVersion The version of the inventory file generating the events.
• LinearAccelerometer Indicates if a Linear Accelerometer sensor is found.
• Magnetometer3D Indicates if a Magnetometer3D sensor is found.
• Orientation Indicates if an Orientation sensor is found.
• Pedometer Indicates if a Pedometer sensor is found.
• Proximity Indicates if a Proximity sensor is found.
• RelativeOrientation Indicates if a Relative Orientation sensor is found.
• SimpleDeviceOrientation Indicates if a Simple Device Orientation sensor is found.
• Temperature Indicates if a Temperature sensor is found.

This event indicates that a new set of InventoryDeviceInterfaceAdd events will be sent. The data collected with this event is used to keep Windows performing properly.

This event includes fields from Ms.Device.DeviceInventoryChange.

The following fields are available:

• InventoryVersion The version of the inventory file generating the events.

This event sends additional metadata about a Plug and Play device that is specific to a particular class of devices. The data collected with this event is used to help keep Windows up to date and performing properly while reducing overall size of data payload.

This event includes fields from Ms.Device.DeviceInventoryChange.

The following fields are available:

• Audio_CaptureDriver The Audio device capture driver endpoint.
• Audio_RenderDriver The Audio device render driver endpoint.
• InventoryVersion The version of the inventory file generating the events.

This event indicates that the InventoryDeviceMediaClass object represented by the objectInstanceId is no longer present. This event is used to understand a PNP device that is specific to a particular class of devices. The data collected with this event is used to help keep Windows up to date and performing properly while reducing overall size of data payload.

This event includes fields from Ms.Device.DeviceInventoryChange.

The following fields are available:

• InventoryVersion The version of the inventory file generating the events.

This event indicates that a new set of InventoryDeviceMediaClassSAdd events will be sent. The data collected with this event is used to keep Windows performing properly.

This event includes fields from Ms.Device.DeviceInventoryChange.

The following fields are available:

• InventoryVersion The version of the inventory file generating the events.

This event represents the basic metadata about a plug and play (PNP) device and its associated driver.

This event includes fields from Ms.Device.DeviceInventoryChange.

The following fields are available:

• Class The device setup class of the driver loaded for the device.
• ClassGuid The device class unique identifier of the driver package loaded on the device.
• COMPID The list of “Compatible IDs” for this device. See COMPID.
• ContainerId The system-supplied unique identifier that specifies which group(s) the device(s) installed on the parent (main) device belong to.
• Description The description of the device.
• DeviceState Identifies the current state of the parent (main) device.
• DriverId The unique identifier for the installed driver.
• DriverName The name of the driver image file.
• DriverPackageStrongName The immediate parent directory name in the Directory field of InventoryDriverPackage.
• DriverVerDate The date of the driver loaded for the device
• DriverVerVersion The version of the driver loaded for the device
• Enumerator Identifies the bus that enumerated the device.
• HWID A list of hardware IDs for the device. See HWID.
• Inf The name of the INF file (possibly renamed by the OS, such as oemXX.inf).
• InstallState The device installation state. For a list of values, see: Device Install State
• InventoryVersion The version number of the inventory process generating the events.
• LowerClassFilters The identifiers of the Lower Class filters installed for the device.
• LowerFilters The identifiers of the Lower filters installed for the device.
• Manufacturer The manufacturer of the device.
• MatchingID The Hardware ID or Compatible ID that Windows uses to install a device instance.
• Model Identifies the model of the device.
• objectInstanceId Deprecated. The Device Instance ID of the device (uniquely identifies a device in the system). Example: pci\ven_8086&dev_0085&subsys_13118086&rev_34\4&2dded11c&0&00e1
• ParentId The Device Instance ID of the parent of the device.
• ProblemCode The error code currently returned by the device, if applicable.
• Provider Identifies the device provider.
• Service The name of the device service.
• STACKID The list of hardware IDs for the stack. See STACKID.
• UpperClassFilters The identifiers of the Upper Class filters installed for the device.
• UpperFilters The identifiers of the Upper filters installed for the device.

This event indicates that the InventoryDevicePnpRemove object is no longer present. The data collected with this event is used to keep Windows performing properly.

This event includes fields from Ms.Device.DeviceInventoryChange.

The following fields are available:

• InventoryVersion The version of the inventory file generating the events.

This event indicates that a new set of InventoryDevicePnpAdd events will be sent. The data collected with this event is used to keep Windows performing properly.

This event includes fields from Ms.Device.DeviceInventoryChange.

The following fields are available:

• InventoryVersion The version of the inventory file generating the events.

This event sends basic metadata about the USB hubs on the device. The data collected with this event is used to keep Windows performing properly.

This event indicates that a new set of InventoryDeviceUsbHubClassAdd events will be sent. The data collected with this event is used to keep Windows performing properly.

This event sends basic metadata about driver binaries running on the system. The data collected with this event is used to help keep Windows up to date and performing properly.

This event includes fields from Ms.Device.DeviceInventoryChange.

The following fields are available:

• DriverCheckSum The checksum of the driver file.
• DriverCompany The company name that developed the driver.
• DriverInBox Is the driver included with the operating system?
• DriverIsKernelMode Is it a kernel mode driver?
• DriverName The file name of the driver.
• DriverPackageStrongName The strong name of the driver package
• DriverSigned Is the driver signed?
• DriverTimeStamp The low 32 bits of the time stamp of the driver file.
• DriverType A bitfield of driver attributes: 1. define DRIVER_MAP_DRIVER_TYPE_PRINTER 0x0001. 2. define DRIVER_MAP_DRIVER_TYPE_KERNEL 0x0002. 3. define DRIVER_MAP_DRIVER_TYPE_USER 0x0004. 4. define DRIVER_MAP_DRIVER_IS_SIGNED 0x0008. 5. define DRIVER_MAP_DRIVER_IS_INBOX 0x0010. 6. define DRIVER_MAP_DRIVER_IS_WINQUAL 0x0040. 7. define DRIVER_MAP_DRIVER_IS_SELF_SIGNED 0x0020. 8. define DRIVER_MAP_DRIVER_IS_CI_SIGNED 0x0080. 9. define DRIVER_MAP_DRIVER_HAS_BOOT_SERVICE 0x0100. 10. define DRIVER_MAP_DRIVER_TYPE_I386 0x10000. 11. define DRIVER_MAP_DRIVER_TYPE_IA64 0x20000. 12. define DRIVER_MAP_DRIVER_TYPE_AMD64 0x40000. 13. define DRIVER_MAP_DRIVER_TYPE_ARM 0x100000. 14. define DRIVER_MAP_DRIVER_TYPE_THUMB 0x200000. 15. define DRIVER_MAP_DRIVER_TYPE_ARMNT 0x400000. 16. define DRIVER_MAP_DRIVER_IS_TIME_STAMPED 0x800000.
• DriverVersion The version of the driver file.
• ImageSize The size of the driver file.
• Inf The name of the INF file.
• InventoryVersion The version of the inventory file generating the events.
• Product The product name that is included in the driver file.
• ProductVersion The product version that is included in the driver file.
• Service The name of the service that is installed for the device.
• WdfVersion The Windows Driver Framework version.

This event indicates that the InventoryDriverBinary object is no longer present. The data collected with this event is used to keep Windows performing properly.

This event includes fields from Ms.Device.DeviceInventoryChange.

The following fields are available:

• InventoryVersion The version of the inventory file generating the events.

This event indicates that a new set of InventoryDriverBinaryAdd events will be sent. The data collected with this event is used to keep Windows performing properly.

This event includes fields from Ms.Device.DeviceInventoryChange.

The following fields are available:

• InventoryVersion The version of the inventory file generating the events.

This event sends basic metadata about drive packages installed on the system. The data collected with this event is used to help keep Windows up to date and performing properly.

This event includes fields from Ms.Device.DeviceInventoryChange.

The following fields are available:

• Class The class name for the device driver.
• ClassGuid The class GUID for the device driver.
• Date The driver package date.
• Directory The path to the driver package.
• Inf The INF name of the driver package.
• InventoryVersion The version of the inventory file generating the events.
• Provider The provider for the driver package.
• SubmissionId The HLK submission ID for the driver package.
• Version The version of the driver package.

This event indicates that the InventoryDriverPackageRemove object is no longer present. The data collected with this event is used to keep Windows performing properly.

This event includes fields from Ms.Device.DeviceInventoryChange.

The following fields are available:

• InventoryVersion The version of the inventory file generating the events.

This event indicates that a new set of InventoryDriverPackageAdd events will be sent. The data collected with this event is used to keep Windows performing properly.

This event includes fields from Ms.Device.DeviceInventoryChange.

The following fields are available:

• InventoryVersion The version of the inventory file generating the events.

This event indicates that this particular data object represented by the ObjectInstanceId is no longer present. The data collected with this event is used to help keep Windows up to date.

This event includes fields from Ms.Device.DeviceInventoryChange.

This event sends details collected for a specific application on the source device. The data collected with this event is used to keep Windows performing properly.

The following fields are available:

• AhaVersion The binary version of the App Health Analyzer tool.
• ApplicationErrors The count of application errors from the event log.
• Bitness The architecture type of the application (16 Bit or 32 bit or 64 bit).
• device_level Various JRE/JAVA versions installed on a particular device.
• ExtendedProperties Attribute used for aggregating all other attributes under this event type.
• Jar Flag to determine if an app has a Java JAR file dependency.
• Jre Flag to determine if an app has JRE framework dependency.
• Jre_version JRE versions an app has declared framework dependency for.
• Name Name of the application.
• NonDPIAware Flag to determine if an app is non-DPI aware
• NumBinaries Count of all binaries (.sys,.dll,.ini) from application install location.
• RequiresAdmin Flag to determine if an app requests admin privileges for execution.
• RequiresAdminv2 Additional flag to determine if an app requests admin privileges for execution.
• RequiresUIAccess Flag to determine if an app is based on UI features for accessibility.
• VB6 Flag to determine if an app is based on VB6 framework.
• VB6v2 Additional flag to determine if an app is based on VB6 framework.
• Version Version of the application.
• VersionCheck Flag to determine if an app has a static dependency on OS version.
• VersionCheckv2 Additional flag to determine if an app has a static dependency on OS version.

This event indicates the beginning of a series of AppHealthStaticAdd events. The data collected with this event is used to keep Windows performing properly.

The following fields are available:

• AllowTelemetry Indicates the presence of the 'allowtelemetry' command line argument.
• CommandLineArgs Command line arguments passed when launching the App Health Analyzer executable.
• Enhanced Indicates the presence of the 'enhanced' command line argument.
• StartTime UTC date and time at which this event was sent.

This event provides basic information about active memory slots on the device.

This event includes fields from Ms.Device.DeviceInventoryChange.

The following fields are available:

• Capacity Memory size in bytes
• Manufacturer Name of the DRAM manufacturer
• Model Model and sub-model of the memory
• Slot Slot to which the DRAM is plugged into the motherboard.
• Speed The configured memory slot speed in MHz.
• Type Reports DDR as an enumeration value as per the DMTF SMBIOS standard version 3.3.0, section 7.18.2.
• TypeDetails Reports Non-volatile as a bit flag enumeration as per the DMTF SMBIOS standard version 3.3.0, section 7.18.3.

This diagnostic event indicates a new sync is being generated for this object type.

This event includes fields from Ms.Device.DeviceInventoryChange.

This event provides data on Unified Update Platform (UUP) products and what version they are at. The data collected with this event is used to keep Windows performing properly.

This event indicates that this particular data object represented by the objectInstanceId is no longer present. The data collected with this event is used to keep Windows performing properly.

This is a diagnostic event that indicates a new sync is being generated for this object type. The data collected with this event is used to keep Windows performing properly.

This event summarizes the counts for the InventoryMiscellaneousUexIndicatorAdd events. The data collected with this event is used to keep Windows performing properly.

The following fields are available:

• ChecksumDictionary A count of each operating system indicator. See ChecksumDictionary.
• PCFP Equivalent to the InventoryId field that is found in other core events.

This event represents the basic metadata about the OS indicators installed on the system. The data collected with this event helps ensure the device is up to date and keeps Windows performing properly.

This event includes fields from Ms.Device.DeviceInventoryChange.

The following fields are available:

• IndicatorValue The indicator value.
• Value Describes an operating system indicator that may be relevant for the device upgrade.

This event indicates that a new set of InventoryMiscellaneousUexIndicatorAdd events has been sent. The data collected with this event helps ensure the device is up to date and keeps Windows performing properly.

This event includes fields from Ms.Device.DeviceInventoryChange.

This event indicates that this particular data object represented by the objectInstanceId is no longer present. This event is used to understand the OS indicators installed on the system. The data collected with this event helps ensure the device is current and Windows is up to date and performing properly.

This event includes fields from Ms.Device.DeviceInventoryChange.

This event indicates that this particular data object represented by the objectInstanceId is no longer present. This event is used to understand the OS indicators installed on the system. The data collected with this event helps ensure the device is current and Windows is up to date and performing properly.

This event includes fields from Ms.Device.DeviceInventoryChange.

This event provides the internal compatible ID for the stack. The data collected with this event is used to keep Windows performing properly.

The following fields are available:

• Order The index of the ordered array.
• Value The value contained in the ordered array.

This event indicates the number of bytes read from or read by the OS and written to or written by the OS upon system startup.

The following fields are available:

• BytesRead The total number of bytes read from or read by the OS upon system startup.
• BytesWritten The total number of bytes written to or written by the OS upon system startup.

This event includes basic data about the Operating System, collected during Boot and used to evaluate the success of the upgrade process. The data collected with this event is used to keep Windows performing properly.

The following fields are available:

• BootApplicationId This field tells us what the OS Loader Application Identifier is.
• BootAttemptCount The number of consecutive times the boot manager has attempted to boot into this operating system.
• BootSequence The current Boot ID, used to correlate events related to a particular boot session.
• BootStatusPolicy Identifies the applicable Boot Status Policy.
• BootType Identifies the type of boot (e.g.: "Cold", "Hiber", "Resume").
• EventTimestamp Seconds elapsed since an arbitrary time point. This can be used to identify the time difference in successive boot attempts being made.
• FirmwareResetReasonEmbeddedController Reason for system reset provided by firmware.
• FirmwareResetReasonEmbeddedControllerAdditional Additional information on system reset reason provided by firmware if needed.
• FirmwareResetReasonPch Reason for system reset provided by firmware.
• FirmwareResetReasonPchAdditional Additional information on system reset reason provided by firmware if needed.
• FirmwareResetReasonSupplied Flag indicating that a reason for system reset was provided by firmware.
• IO Amount of data written to and read from the disk by the OS Loader during boot. See IO.
• LastBootSucceeded Flag indicating whether the last boot was successful.
• LastShutdownSucceeded Flag indicating whether the last shutdown was successful.
• MenuPolicy Type of advanced options menu that should be shown to the user (Legacy, Standard, etc.).
• RecoveryEnabled Indicates whether recovery is enabled.
• UserInputTime The amount of time the loader application spent waiting for user input.

This event denotes the transition between operating system states (e.g., On, Off, Sleep, etc.). By using this event with Windows Analytics, organizations can use this to help monitor reliability and performance of managed devices. The data collected with this event is used to keep Windows performing properly.

The following fields are available:

• AcPowerOnline If "TRUE," the device is using AC power. If "FALSE," the device is using battery power.
• ActualTransitions This will give the actual transitions number
• BatteryCapacity Maximum battery capacity in mWh
• BatteryCharge Current battery charge as a percentage of total capacity
• BatteryDischarging Flag indicating whether the battery is discharging or charging
• BootId Monotonically increasing boot ID, reset on upgrades.
• BootTimeUTC Boot time in UTC file time.
• EventSequence Monotonically increasing event number for OsStateChange events logged during this boot.
• LastStateTransition The previous state transition on the device.
• LastStateTransitionSub The previous state subtransition on the device.
• StateDurationMS Milliseconds spent in the state being departed
• StateTransition Transition type PowerOn=1, Shutdown, Suspend, Resume, Heartbeat.
• StateTransitionSub Subtransition type Normal=1, Reboot, Hiberboot, Standby, Hibernate, ConnectedStandby, Reserved, HybridSleep.
• TotalDurationMS Total time device has been up in milliseconds in wall clock time.
• TotalUptimeMS Total time device has been on (not in a suspended state) in milliseconds.
• TransitionsToOn TransitionsToOn increments each time the system successfully completes a system sleep event, and is sent as part of the PowerTransitionEnd ETW event.
• UptimeDeltaMS Duration in last state in milliseconds.

This event returns data to track the count of the migration objects across various phases during feature update. The data collected with this event is used to help keep Windows secure and to track data loss scenarios.

This event returns data about the count of the migration objects across various phases during feature update. The data collected with this event is used to help keep Windows secure and to track data loss scenarios.

This event returns data to track the count of the migration objects across various phases during feature update. The data collected with this event is used to help keep Windows secure and to track data loss scenarios.

This event includes basic data about install and uninstall OneDrive API operations. The data collected with this event is used to help keep Windows up to date, secure, and performing properly.

The following fields are available:

• APIName The name of the API.
• Duration How long the operation took.
• IsSuccess Was the operation successful?
• ResultCode The result code.
• ScenarioName The name of the scenario.

This event includes a success or failure summary of the installation. The data collected with this event is used to help keep Windows up to date, secure, and performing properly.

The following fields are available:

• APIName The name of the API.
• HResult Indicates the result code of the event
• IsSuccess Was the operation successful?
• ScenarioName The name of the scenario.

This event is related to the OS version when the OS is upgraded with OneDrive installed. The data collected with this event is used to help keep Windows up to date, secure, and performing properly.

The following fields are available:

• CurrentOneDriveVersion The current version of OneDrive.
• CurrentOSBuildBranch The current branch of the operating system.
• CurrentOSBuildNumber The current build number of the operating system.
• CurrentOSVersion The current version of the operating system.
• HResult The HResult of the operation.
• SourceOSBuildBranch The source branch of the operating system.
• SourceOSBuildNumber The source build number of the operating system.
• SourceOSVersion The source version of the operating system.

This event is related to registering or unregistering the OneDrive update task. The data collected with this event is used to help keep Windows up to date, secure, and performing properly.

The following fields are available:

• APIName The name of the API.
• IsSuccess Was the operation successful?
• RegisterNewTaskResult The HResult of the RegisterNewTask operation.
• ScenarioName The name of the scenario.
• UnregisterOldTaskResult The HResult of the UnregisterOldTask operation.

This event includes basic data about the installation state of dependent OneDrive components. The data collected with this event is used to help keep Windows up to date, secure, and performing properly.

The following fields are available:

• ComponentName The name of the dependent component.
• isInstalled Is the dependent component installed?

This event indicates the status of the OneDrive integration with Microsoft Office. The data collected with this event is used to help keep Windows up to date, secure, and performing properly.

The following fields are available:

• isValid Is the Microsoft Office registration valid?

This event indicates if the OneDrive overlay icon is working correctly. 0 = healthy; 1 = can be fixed; 2 = broken. The data collected with this event is used to help keep Windows up to date, secure, and performing properly.

The following fields are available:

• 32bit The status of the OneDrive overlay icon on a 32-bit operating system.
• 64bit The status of the OneDrive overlay icon on a 64-bit operating system.

The event determines the result of the installation repair. The data collected with this event is used to help keep Windows up to date, secure, and performing properly.

The following fields are available:

• hr The HResult of the operation.

This event indicates the status when downloading the OneDrive setup file. The data collected with this event is used to help keep Windows up to date, secure, and performing properly.

The following fields are available:

• hr The HResult of the operation.

This event sends information describing the result of the update. The data collected with this event is used to help keep Windows up to date, secure, and performing properly.

The following fields are available:

• hr The HResult of the operation.
• IsLoggingEnabled Indicates whether logging is enabled for the updater.
• UpdaterVersion The version of the updater.

This event determines status of the update tier registry values. The data collected with this event is used to help keep Windows up to date, secure, and performing properly.

The following fields are available:

• regReadEnterpriseHr The HResult of the enterprise reg read value.
• regReadTeamHr The HResult of the team reg read value.

This event determines the status when downloading the OneDrive update configuration file. The data collected with this event is used to help keep Windows up to date, secure, and performing properly.

The following fields are available:

• hr The HResult of the operation.

This event determines the error code that was returned when verifying Internet connectivity. The data collected with this event is used to help keep Windows up to date, secure, and performing properly.

The following fields are available:

• winInetError The HResult of the operation.

This event returns data to report the efficacy of a single-use tool to inform users impacted by a known issue and to take corrective action to address the issue. The data collected with this event is used to help keep Windows up to date.

The following fields are available:

• cleanupTask Indicates whether the task that launched the dialog should be cleaned up.
• cleanupTaskResult The return code of the attempt to clean up the task used to show the dialog.
• deviceEvaluated Indicates whether the device was eligible for evaluation of a known issue.
• deviceImpacted Indicates whether the device was impacted by a known issue.
• modalAction The action the user took on the dialog that was presented to them.
• modalResult The return code of the attempt to show a dialog to the user explaining the issue.
• resetSettingsResult The return code of the action to correct the known issue.

This event sends basic info on whether the device should be updated to the latest cumulative update. The data collected with this event is used to help keep Windows up to date and secure.

The following fields are available:

• CV Correlation vector.
• GlobalEventCounter Client side counter which indicates ordering of events sent by this device.
• PackageVersion Current package version of quality update assistant.
• Result Applicability check for quality update assistant.

This event sends basic info on whether the device is ready to download the latest cumulative update. The data collected with this event is used to help keep Windows secure and up to date.

The following fields are available:

• CV Correlation vector.
• GlobalEventCounter Client side counter which indicates ordering of events sent by this device.
• PackageVersion Current package version of quality update assistant.
• Result Device readiness check for quality update assistant.

This event sends basic info when download of the latest cumulative update begins. The data collected with this event is used to help keep Windows secure and up to date.

The following fields are available:

• CV Correlation vector.
• GlobalEventCounter Client side counter that indicates ordering of events sent by this device.
• PackageVersion Current package version of quality update assistant.
• Result Download of latest cumulative update payload.

This event sends basic info on the result of the installation of the latest cumulative update. The data collected with this event is used to help keep Windows secure and up to date.

The following fields are available:

• CV Correlation vector.
• GlobalEventCounter Client side counter which indicates ordering of events sent by this device.
• PackageVersion Current package version of quality update assistant.
• Result Install of latest cumulative update payload.

This event indicates whether Windows Update sediment remediations need to be applied to the sediment device to keep Windows up to date. A sediment device is one that has been on a previous OS version for an extended period. The remediations address issues on the system that prevent the device from receiving OS updates.

The following fields are available:

• ActionName The name of the action to be taken by the plug-in.
• AppraiserBinariesValidResult Indicates whether the plug-in was appraised as valid.
• AppraiserDetectCondition Indicates whether the plug-in passed the appraiser's check.
• AppraiserRegistryValidResult Indicates whether the registry entry checks out as valid.
• AppraiserTaskDisabled Indicates the appraiser task is disabled.
• AppraiserTaskValidFailed Indicates the Appraiser task did not function and requires intervention.
• CV Correlation vector
• DateTimeDifference The difference between local and reference clock times.
• DateTimeSyncEnabled Indicates whether the Datetime Sync plug-in is enabled.
• DaysSinceLastSIH The number of days since the most recent SIH executed.
• DaysToNextSIH The number of days until the next scheduled SIH execution.
• DetectedCondition Indicates whether detected condition is true and the perform action will be run.
• EvalAndReportAppraiserBinariesFailed Indicates the EvalAndReportAppraiserBinaries event failed.
• EvalAndReportAppraiserRegEntries Indicates the EvalAndReportAppraiserRegEntriesFailed event failed.
• EvalAndReportAppraiserRegEntriesFailed Indicates the EvalAndReportAppraiserRegEntriesFailed event failed.
• GlobalEventCounter Client side counter that indicates ordering of events sent by the remediation system.
• HResult The HRESULT for detection or perform action phases of the plugin.
• IsAppraiserLatestResult The HRESULT from the appraiser task.
• IsConfigurationCorrected Indicates whether the configuration of SIH task was successfully corrected.
• LastHresult The HRESULT for detection or perform action phases of the plugin.
• LastRun The date of the most recent SIH run.
• NextRun Date of the next scheduled SIH run.
• PackageVersion The version of the current remediation package.
• PluginName Name of the plugin specified for each generic plugin event.
• Reload True if SIH reload is required.
• RemediationNoisyHammerAcLineStatus Indicates the AC Line Status of the device.
• RemediationNoisyHammerAutoStartCount The number of times Auto UA auto-started.
• RemediationNoisyHammerCalendarTaskEnabled Event that indicates Update Assistant Calendar Task is enabled.
• RemediationNoisyHammerCalendarTaskExists Event that indicates an Update Assistant Calendar Task exists.
• RemediationNoisyHammerCalendarTaskTriggerEnabledCount Event that indicates calendar triggers are enabled in the task.
• RemediationNoisyHammerDaysSinceLastTaskRunTime The number of days since the Auto UA ran.
• RemediationNoisyHammerGetCurrentSize Size in MB of the $GetCurrent folder.
• RemediationNoisyHammerIsInstalled TRUE if the Auto UA is installed.
• RemediationNoisyHammerLastTaskRunResult The result from the last Auto UA task run.
• RemediationNoisyHammerMeteredNetwork TRUE if the machine is on a metered network.
• RemediationNoisyHammerTaskEnabled TRUE if the Auto UA task is enabled.
• RemediationNoisyHammerTaskExists TRUE if the Auto UA task exists.
• RemediationNoisyHammerTaskTriggerEnabledCount Indicates whether the task has the count trigger enabled.
• RemediationNoisyHammerUAExitCode The exit code of the Update Assistant.
• RemediationNoisyHammerUAExitState The exit code of the Update Assistant.
• RemediationNoisyHammerUserLoggedIn TRUE if there is a user logged in.
• RemediationNoisyHammerUserLoggedInAdmin TRUE if there is the user currently logged in is an Admin.
• RemediationShellDeviceManaged TRUE if the device is WSUS managed or Windows Updated disabled.
• RemediationShellDeviceNewOS TRUE if the device has a recently installed OS.
• RemediationShellDeviceSccm TRUE if the device is managed by Configuration Manager.
• RemediationShellDeviceZeroExhaust TRUE if the device has opted out of Windows Updates completely.
• RemediationTargetMachine Indicates whether the device is a target of the specified fix.
• RemediationTaskHealthAutochkProxy True/False based on the health of the AutochkProxy task.
• RemediationTaskHealthChkdskProactiveScan True/False based on the health of the Check Disk task.
• RemediationTaskHealthDiskCleanup_SilentCleanup True/False based on the health of the Disk Cleanup task.
• RemediationTaskHealthMaintenance_WinSAT True/False based on the health of the Health Maintenance task.
• RemediationTaskHealthServicing_ComponentCleanupTask True/False based on the health of the Health Servicing Component task.
• RemediationTaskHealthUSO_ScheduleScanTask True/False based on the health of the USO (Update Session Orchestrator) Schedule task.
• RemediationTaskHealthWindowsUpdate_ScheduledStartTask True/False based on the health of the Windows Update Scheduled Start task.
• RemediationTaskHealthWindowsUpdate_SihbootTask True/False based on the health of the Sihboot task.
• RemediationUHServiceBitsServiceEnabled Indicates whether BITS service is enabled.
• RemediationUHServiceDeviceInstallEnabled Indicates whether Device Install service is enabled.
• RemediationUHServiceDoSvcServiceEnabled Indicates whether DO service is enabled.
• RemediationUHServiceDsmsvcEnabled Indicates whether DSMSVC service is enabled.
• RemediationUHServiceLicensemanagerEnabled Indicates whether License Manager service is enabled.
• RemediationUHServiceMpssvcEnabled Indicates whether MPSSVC service is enabled.
• RemediationUHServiceTokenBrokerEnabled Indicates whether Token Broker service is enabled.
• RemediationUHServiceTrustedInstallerServiceEnabled Indicates whether Trusted Installer service is enabled.
• RemediationUHServiceUsoServiceEnabled Indicates whether USO (Update Session Orchestrator) service is enabled.
• RemediationUHServicew32timeServiceEnabled Indicates whether W32 Time service is enabled.
• RemediationUHServiceWecsvcEnabled Indicates whether WECSVC service is enabled.
• RemediationUHServiceWinmgmtEnabled Indicates whether WMI service is enabled.
• RemediationUHServiceWpnServiceEnabled Indicates whether WPN service is enabled.
• RemediationUHServiceWuauservServiceEnabled Indicates whether WUAUSERV service is enabled.
• Result This is the HRESULT for Detection or Perform Action phases of the plugin.
• RunAppraiserFailed Indicates RunAppraiser failed to run correctly.
• RunTask TRUE if SIH task should be run by the plug-in.
• TimeServiceNTPServer The URL for the NTP time server used by device.
• TimeServiceStartType The startup type for the NTP time service.
• TimeServiceSyncDomainJoined True if device domain joined and hence uses DC for clock.
• TimeServiceSyncType Type of sync behavior for Date & Time service on device.

This event is sent when Windows Update sediment remediations have completed on the sediment device to keep Windows up to date. A sediment device is one that has been on a previous OS version for an extended period. The remediations address issues on the system that prevent the device from receiving OS updates.

The following fields are available:

• ActionName Name of the action to be completed by the plug-in.
• AppraiserTaskCreationFailed TRUE if the appraiser task creation failed to complete successfully.
• AppraiserTaskDeleteFailed TRUE if deletion of appraiser task failed to complete successfully.
• AppraiserTaskExistFailed TRUE if detection of the appraiser task failed to complete successfully.
• AppraiserTaskLoadXmlFailed TRUE if the Appraiser XML Loader failed to complete successfully.
• AppraiserTaskMissing TRUE if the Appraiser task is missing.
• AppraiserTaskTimeTriggerUpdateFailedId TRUE if the Appraiser Task Time Trigger failed to update successfully.
• AppraiserTaskValidateTaskXmlFailed TRUE if the Appraiser Task XML failed to complete successfully.
• CrossedDiskSpaceThreshold Indicates if cleanup resulted in hard drive usage threshold required for feature update to be exceeded.
• CV The Correlation Vector.
• DateTimeDifference The difference between the local and reference clocks.
• DaysSinceOsInstallation The number of days since the installation of the Operating System.
• DiskMbCleaned The amount of space cleaned on the hard disk, measured in megabytes.
• DiskMbFreeAfterCleanup The amount of free hard disk space after cleanup, measured in Megabytes.
• DiskMbFreeBeforeCleanup The amount of free hard disk space before cleanup, measured in Megabytes.
• ForcedAppraiserTaskTriggered TRUE if Appraiser task ran from the plug-in.
• GlobalEventCounter Client-side counter that indicates ordering of events sent by the active user.
• HandlerCleanupFreeDiskInMegabytes The amount of hard disk space cleaned by the storage sense handlers, measured in megabytes.
• HResult The result of the event execution.
• LatestState The final state of the plug-in component.
• PackageVersion The package version for the current Remediation.
• PageFileCount The number of Windows Page files.
• PageFileCurrentSize The size of the Windows Page file, measured in Megabytes.
• PageFileLocation The storage location (directory path) of the Windows Page file.
• PageFilePeakSize The maximum amount of hard disk space used by the Windows Page file, measured in Megabytes.
• PluginName The name of the plug-in specified for each generic plug-in event.
• RanCleanup TRUE if the plug-in ran disk cleanup.
• RemediationConfigurationTroubleshooterExecuted True/False based on whether the Remediation Configuration Troubleshooter executed successfully.
• RemediationConfigurationTroubleshooterIpconfigFix TRUE if IPConfig Fix completed successfully.
• RemediationConfigurationTroubleshooterNetShFix TRUE if network card cache reset ran successfully.
• RemediationDiskCleanSizeBtWindowsFolderInMegabytes The size of the Windows BT folder (used to store Windows upgrade files), measured in Megabytes.
• RemediationDiskCleanupBTFolderEsdSizeInMB The size of the Windows BT folder (used to store Windows upgrade files) ESD (Electronic Software Delivery), measured in Megabytes.
• RemediationDiskCleanupGetCurrentEsdSizeInMB The size of any existing ESD (Electronic Software Delivery) folder, measured in Megabytes.
• RemediationDiskCleanupSearchFileSizeInMegabytes The size of the Cleanup Search index file, measured in Megabytes.
• RemediationDiskCleanupUpdateAssistantSizeInMB The size of the Update Assistant folder, measured in Megabytes.
• RemediationDoorstopChangeSucceeded TRUE if Doorstop registry key was successfully modified.
• RemediationDoorstopExists TRUE if there is a OneSettings Doorstop value.
• RemediationDoorstopRegkeyError TRUE if an error occurred accessing the Doorstop registry key.
• RemediationDRFKeyDeleteSucceeded TRUE if the RecoveredFrom (Doorstop) registry key was successfully deleted.
• RemediationDUABuildNumber The build number of the DUA.
• RemediationDUAKeyDeleteSucceeded TRUE if the UninstallActive registry key was successfully deleted.
• RemediationDuplicateTokenSucceeded TRUE if the user token was successfully duplicated.
• RemediationImpersonateUserSucceeded TRUE if the user was successfully impersonated.
• RemediationNoisyHammerTaskKickOffIsSuccess TRUE if the Auto UA task started successfully.
• RemediationQueryTokenSucceeded TRUE if the user token was successfully queried.
• RemediationRanHibernation TRUE if the system entered Hibernation.
• RemediationRevertToSystemSucceeded TRUE if reversion to the system context succeeded.
• RemediationUpdateServiceHealthRemediationResult The result of the Update Service Health plug-in.
• RemediationUpdateTaskHealthRemediationResult The result of the Update Task Health plug-in.
• RemediationUpdateTaskHealthTaskList A list of tasks fixed by the Update Task Health plug-in.
• RemediationWindowsLogSpaceFound The size of the Windows log files found, measured in Megabytes.
• RemediationWindowsLogSpaceFreed The amount of disk space freed by deleting the Windows log files, measured in Megabytes.
• RemediationWindowsSecondaryDriveFreeSpace The amount of free space on the secondary drive, measured in Megabytes.
• RemediationWindowsSecondaryDriveLetter The letter designation of the first secondary drive with a total capacity of 10GB or more.
• RemediationWindowsSecondaryDriveTotalSpace The total storage capacity of the secondary drive, measured in Megabytes.
• RemediationWindowsTotalSystemDiskSize The total storage capacity of the System Disk Drive, measured in Megabytes.
• Result The HRESULT for Detection or Perform Action phases of the plug-in.
• RunResult The HRESULT for Detection or Perform Action phases of the plug-in.
• ServiceHealthPlugin The name of the Service Health plug-in.
• StartComponentCleanupTask TRUE if the Component Cleanup task started successfully.
• TotalSizeofOrphanedInstallerFilesInMegabytes The size of any orphaned Windows Installer files, measured in Megabytes.
• TotalSizeofStoreCacheAfterCleanupInMegabytes The size of the Microsoft Store cache after cleanup, measured in Megabytes.
• TotalSizeofStoreCacheBeforeCleanupInMegabytes The size of the Microsoft Store cache (prior to cleanup), measured in Megabytes.
• usoScanDaysSinceLastScan The number of days since the last USO (Update Session Orchestrator) scan.
• usoScanInProgress TRUE if a USO (Update Session Orchestrator) scan is in progress, to prevent multiple simultaneous scans.
• usoScanIsAllowAutoUpdateKeyPresent TRUE if the AllowAutoUpdate registry key is set.
• usoScanIsAllowAutoUpdateProviderSetKeyPresent TRUE if AllowAutoUpdateProviderSet registry key is set.
• usoScanIsAuOptionsPresent TRUE if Auto Update Options registry key is set.
• usoScanIsFeatureUpdateInProgress TRUE if a USO (Update Session Orchestrator) scan is in progress, to prevent multiple simultaneous scans.
• usoScanIsNetworkMetered TRUE if the device is currently connected to a metered network.
• usoScanIsNoAutoUpdateKeyPresent TRUE if no Auto Update registry key is set/present.
• usoScanIsUserLoggedOn TRUE if the user is logged on.
• usoScanPastThreshold TRUE if the most recent Update Session Orchestrator (USO) scan is past the threshold (late).
• usoScanType The type of USO (Update Session Orchestrator) scan: "Interactive" or "Background".
• WindowsHyberFilSysSizeInMegabytes The size of the Windows Hibernation file, measured in Megabytes.
• WindowsInstallerFolderSizeInMegabytes The size of the Windows Installer folder, measured in Megabytes.
• WindowsOldFolderSizeInMegabytes The size of the Windows.OLD folder, measured in Megabytes.
• WindowsOldSpaceCleanedInMB The amount of disk space freed by removing the Windows.OLD folder, measured in Megabytes.
• WindowsPageFileSysSizeInMegabytes The size of the Windows Page file, measured in Megabytes.
• WindowsSoftwareDistributionFolderSizeInMegabytes The size of the SoftwareDistribution folder, measured in Megabytes.
• WindowsSwapFileSysSizeInMegabytes The size of the Windows Swap file, measured in Megabytes.
• WindowsSxsFolderSizeInMegabytes The size of the WinSxS (Windows Side-by-Side) folder, measured in Megabytes.
• WindowsSxsTempFolderSizeInMegabytes The size of the WinSxS (Windows Side-by-Side) Temp folder, measured in Megabytes.

This event indicates that an unexpected error occurred during an update and provides information to help address the issue. The data collected with this event is used to help keep Windows up to date.

The following fields are available:

• CV The Correlation vector.
• ErrorMessage A description of any errors encountered while the plug-in was running.
• GlobalEventCounter The client-side counter that indicates ordering of events.
• Hresult The result of the event execution.
• PackageVersion The version number of the current remediation package.
• SessionGuid GUID associated with a given execution of sediment pack.

This event indicates a Sediment Pack error (update stack failure) has been detected and provides information to help address the issue. The data collected with this event is used to help keep Windows up to date.

The following fields are available:

• HResult The result of the event execution.
• Message A message containing information about the error that occurred.
• PackageVersion The version number of the current remediation package.

This event indicates an error when Self Update results in a Fallback and provides information to help address the issue. The data collected with this event is used to help keep Windows up to date.

The following fields are available:

• s0 Indicates the Fallback error level. See Microsoft.Windows.Remediation.wilResult.
• wilResult The result of the Windows Installer Logging. See wilResult.

This event occurs when the Notify User task executes and provides information about the cause of the notification. The data collected with this event is used to help keep Windows up to date.

The following fields are available:

• CV The Correlation vector.
• GlobalEventCounter The client-side counter that indicates ordering of events.
• PackageVersion The version number of the current remediation package.
• RemediationNotifyUserFixIssuesCallResult The result of calling the USO (Update Session Orchestrator) sequence steps.
• RemediationNotifyUserFixIssuesUsoDownloadCalledHr The error code from the USO (Update Session Orchestrator) download call.
• RemediationNotifyUserFixIssuesUsoInitializedHr The error code from the USO (Update Session Orchestrator) initialize call.
• RemediationNotifyUserFixIssuesUsoProxyBlanketHr The error code from the USO (Update Session Orchestrator) proxy blanket call.
• RemediationNotifyUserFixIssuesUsoSetSessionHr The error code from the USO (Update Session Orchestrator) session call.

This event provides the modification of the date on which an Automatic App Update scheduled task failed and provides information about the failure. The data collected with this event is used to help keep Windows up to date.

The following fields are available:

• CV The Correlation Vector.
• GlobalEventCounter The client-side counter that indicates ordering of events.
• hResult The result of the event execution.
• PackageVersion The version number of the current remediation package.

This event identifies the remediation plug-in that returned an unexpected exception and provides information about the exception. The data collected with this event is used to help keep Windows up to date.

The following fields are available:

• CV The Correlation Vector.
• GlobalEventCounter The client-side counter that indicates ordering of events.
• PackageVersion The version number of the current remediation package.
• RemediationShellUnexpectedExceptionId The ID of the remediation plug-in that caused the exception.

This event tracks the health of key update (Remediation) services and whether they are enabled. The data collected with this event is used to help keep Windows up to date.

The following fields are available:

• CV The Correlation Vector.
• GlobalEventCounter The client-side counter that indicates ordering of events.
• hResult The result of the event execution.
• PackageVersion The version number of the current remediation package.
• serviceName The name associated with the operation.

This event returns information about the upgrade upon success to help ensure Windows is up to date.

The following fields are available:

• AppraiserPlugin TRUE / FALSE depending on whether the Appraiser plug-in task fix was successful.
• ClearAUOptionsPlugin TRUE / FALSE depending on whether the AU (Auto Updater) Options registry keys were successfully deleted.
• CV The Correlation Vector.
• DatetimeSyncPlugin TRUE / FALSE depending on whether the DateTimeSync plug-in ran successfully.
• DiskCleanupPlugin TRUE / FALSE depending on whether the DiskCleanup plug-in ran successfully.
• GlobalEventCounter The client-side counter that indicates ordering of events.
• NoisyHammerPlugin TRUE / FALSE depending on whether the Auto UA plug-in ran successfully.
• PackageVersion The version number of the current remediation package.
• RebootRequiredPlugin TRUE / FALSE depending on whether the Reboot plug-in ran successfully.
• RemediationNotifyUserFixIssuesPlugin TRUE / FALSE depending on whether the User Fix Issues plug-in ran successfully
• RemediationPostUpgradeDiskSpace The amount of disk space available after the upgrade.
• RemediationPostUpgradeHibernationSize The size of the Hibernation file after the upgrade.
• ServiceHealthPlugin A list of services updated by the plug-in.
• SIHHealthPlugin TRUE / FALSE depending on whether the SIH Health plug-in ran successfully.
• StackDataResetPlugin TRUE / FALSE depending on whether the update stack completed successfully.
• TaskHealthPlugin A list of tasks updated by the plug-in.
• UpdateApplicabilityFixerPlugin TRUE / FALSE depending on whether the update applicability fixer plug-in completed successfully.
• WindowsUpdateEndpointPlugin TRUE / FALSE depending on whether the Windows Update Endpoint was successful.

This event is sent when Windows Update sediment remediations have started on the sediment device to keep Windows up to date. A sediment device is one that has been on a previous OS version for an extended period. The remediations address issues on the system that prevent the device from receiving OS updates.

The following fields are available:

• CV Correlation vector.
• GlobalEventCounter Client side counter which indicates ordering of events sent by this user.
• PackageVersion The version of the current remediation package.
• PluginName Name of the plugin specified for each generic plugin event.
• Result This is the HRESULT for detection or perform action phases of the plugin.

This event provides Self Update information to help keep Windows up to date.

The following fields are available:

• callContext A list of diagnostic activities containing this error.
• currentContextId An identifier for the newest diagnostic activity containing this error.
• currentContextMessage A message associated with the most recent diagnostic activity containing this error (if any).
• currentContextName Name of the most recent diagnostic activity containing this error.
• failureCount Number of failures seen within the binary where the error occurred.
• failureId The identifier assigned to this failure.
• failureType Indicates the type of failure observed (exception, returned, error, logged error, or fail fast).
• fileName The source code file name where the error occurred.
• function The name of the function where the error occurred.
• hresult The failure error code.
• lineNumber The Line Number within the source code file where the error occurred.
• message A message associated with the failure (if any).
• module The name of the binary module in which the error occurred.
• originatingContextId The identifier for the oldest diagnostic activity containing this error.
• originatingContextMessage A message associated with the oldest diagnostic activity containing this error (if any).
• originatingContextName The name of the oldest diagnostic activity containing this error.
• threadId The identifier of the thread the error occurred on.

This event provides data on the current Appraiser status of the device to help ensure Windows is up to date.

The following fields are available:

• ErrorCode The value of the Return Code for the registry query.
• GStatus The pre-upgrade GStatus value.
• PayloadVersion The version information for the remediation component.
• RegKeyName The name of the registry subkey where data was found for this event.
• Time The system time at which the event began.
• UpgEx The pre-upgrade UpgEx value.

This event provides information about the binary returned by the Operating System Remediation System Service (OSRSS) to help ensure Windows is up to date.

The following fields are available:

• BinaryPath The sanitized name of the system binary from which the data was gathered.
• ErrorCode The value of the return code for querying the version from the binary.
• FileVerBuild The binary’s build number.
• FileVerMajor The binary’s major version number.
• FileVerMinor The binary’s minor version number.
• FileVerRev The binary’s revision number.
• PayloadVersion The version information for the remediation component.
• Time The system time at which the event began.

This event is sent when detailed state information is needed from an update trial run. The data collected with this event is used to help keep Windows up to date.

This event provides information when the Download Service returns an error. The information provided helps keep Windows up to date.

The following fields are available:

• Architecture The platform architecture used to identify the correct download payload.
• BuildNumber The starting build number used to identify the correct download payload.
• Edition The Operating System Edition used to identify the correct download payload.
• Error The description of the error encountered.
• LanguageCode The system User Interface Language used to identify the correct download payload.
• Stack Details about the error encountered.
• WorkingDirectory The folder location (path) downloader was attempting to say the payload to.

This event indicates the progress of the downloader in 1% increments. The data collected with this event is used to help keep Windows up to date.

The following fields are available:

• Percentage The amount successfully downloaded, measured as a percentage of the whole.

This event indicates an error in the updater payload. This information assists in keeping Windows up to date.

The following fields are available:

• FailureType The type of error encountered.
• FileName The code file in which the error occurred.
• HResult The failure error code.
• LineNumber The line number in the code file at which the error occurred.
• ReleaseVer The version information for the component in which the error occurred.
• Time The system time at which the error occurred.

The event indicates progress made by the updater. This information assists in keeping Windows up to date.

The following fields are available:

• NewPhase The phase of progress made.
• ReleaseVer The version information for the component in which the change occurred.
• Time The system time at which the phase chance occurred.

This event provide information about the system service for which data is being gathered by the Operating System Remediation System Service (OSRSS) to help ensure Windows is up to date.

The following fields are available:

• ErrorCode The value returned by the error for querying the service information.
• PayloadVersion The version information for the remediation component.
• ServiceName The name of the system service for which data was gathered.
• ServiceStatus The status of the specified service.
• Time The system time at which the event occurred.

This event provides information about how long the device has been operating. This information helps ensure Windows is up to date.

The following fields are available:

• Days The number of days the device has been on.
• Hours The number of hours the device has been on.
• Minutes The number of minutes the device has been on.
• PayloadVersion The version information for the remediation component.
• Seconds The number of seconds the machine has been on.
• Ticks The number of system clock “ticks” the device has been on.
• Time The system time at which the event occurred.

This event returns data relating to the error state after one of the applicability checks for the installer component of the Operating System Remediation System Service (OSRSS) has failed. The data collected with this event is used to help keep Windows up to date.

The following fields are available:

• CheckName The name of the applicability check that failed.
• InstallerVersion The version information for the installer component.
• Time The system timestamp for when the event occurred.

This event indicates the Operating System Remediation System Service (OSRSS) installer is attempting an update to itself. This information helps ensure Windows is up to date.

The following fields are available:

• InstallerVersion The version information of the Installer component.
• Time The system time at which the event occurred.

This event indicates the Operating System Remediation System Service (OSRSS) updated installer binaries with new binaries as part of its self-update process. This information helps ensure Windows is up to date.

The following fields are available:

• InstallerVersion The version information of the Installer component.
• Time The system time at which the event occurred.

This event indicates an error occurred in the Operating System Remediation System Service (OSRSS). The information provided helps ensure future upgrade/update attempts are more successful. The data collected with this event is used to help keep Windows up to date.

The following fields are available:

• FailureType The type of error encountered.
• FileName The code file in which the error occurred.
• HResult The failure error code.
• InstallerVersion The version information of the Installer component.
• LineNumber The line number in the code file at which the error occurred.
• Time The system time at which the event occurred.

This event indicates the Operating System Remediation System Service (OSRSS) has launched. The information provided helps ensure Windows is up to date.

The following fields are available:

• InstallerVersion The version information of the Installer component.
• Time The system time at which the event occurred.

This event indicates the Operating System Remediation System Service (OSRSS) successfully installed the Installer Component. This information helps ensure Windows is up to date.

The following fields are available:

• InstallerVersion The version information of the Installer component.
• Time The system time at which the event occurred.

This event indicates the Operating System Remediation System Service (OSRSS) has restarted after installing an updated version of itself. This information helps ensure Windows is up to date.

The following fields are available:

• InstallerVersion The version information of the Installer component.
• Time The system time at which the event occurred.

This event indicates the Operating System Remediation System Service (OSRSS) has started after installing an updated version of itself. This information helps ensure Windows is up to date.

The following fields are available:

• InstallerVersion The version information of the Installer component.
• Time The system time at which the event occurred.

This event indicates the Operating System Remediation System Service (OSRSS) was stopped by a self-updated to install an updated version of itself. This information helps ensure Windows is up to date.

The following fields are available:

• InstallerVersion The version information of the Installer component.
• Time The system time at which the event occurred.

This event indicates the Operating System Remediation System Service (OSRSS) successfully uninstalled the installed version as part of a self-update. This information helps ensure Windows is up to date.

The following fields are available:

• InstallerVersion The version information of the Installer component.
• Time The system time at which the event occurred.

This event indicates the Operating System Remediation System Service (OSRSS) successfully started the Uninstaller as part of a self-update. This information helps ensure Windows is up to date.

The following fields are available:

• InstallerVersion The version information of the Installer component.
• Time The system time at which the event occurred.

This event indicates the Operating System Remediation System Service (OSRSS) successfully completed the self-update operation. This information helps ensure Windows is up to date.

The following fields are available:

• InstallerVersion The version information of the Installer component.
• Time The system time at which the event occurred.

This event indicates the Operating System Remediation System Service (OSRSS) successfully launched the self-updater after downloading it. This information helps ensure Windows is up to date.

The following fields are available:

• InstallerVersion The version information of the Installer component.
• Time The system time at which the event occurred.

This event is sent when the Windows Update sediment remediations launcher finds that an applicable plug-in to address issues that may be preventing the sediment device from receiving OS updates. A sediment device is one that has been on a previous OS version for an extended period. The data collected with this event is used to help keep Windows up to date.

The following fields are available:

• CV Correlation vector.
• DetectedCondition Boolean true if detect condition is true and perform action will be run.
• GlobalEventCounter Client side counter which indicates ordering of events sent by this user.
• IsSelfUpdateEnabledInOneSettings True if self update enabled in Settings.
• IsSelfUpdateNeeded True if self update needed by device.
• PackageVersion Current package version of Remediation.
• PluginName Name of the plugin specified for each generic plugin event.
• Result This is the HRESULT for detection or perform action phases of the plugin.

This event is sent when the Windows Update sediment remediations launcher finishes running a plug-in to address issues that may be preventing the sediment device from receiving OS updates. A sediment device is one that has been on a previous OS version for an extended period. The data collected with this event is used to help keep Windows up to date.

The following fields are available:

• CV Correlation vector.
• FailedReasons Concatenated list of failure reasons.
• GlobalEventCounter Client side counter which indicates ordering of events sent by this user.
• PackageVersion Current package version of Remediation.
• PluginName Name of the plugin specified for each generic plugin event.
• Result This is the HRESULT for detection or perform action phases of the plugin.
• SedLauncherExecutionResult HRESULT for one execution of the Sediment Launcher.

This event indicates an error occurred during the execution of the plug-in. The information provided helps ensure future upgrade/update attempts are more successful. The data collected with this event is used to help keep Windows up to date.

The following fields are available:

• HResult The result for the Detection or Perform Action phases of the plug-in.
• Message A message containing information about the error that occurred (if any).
• PackageVersion The version number of the current remediation package.

This event indicates that an error occurred during execution of the plug-in fallback. The data collected with this event is used to help keep Windows up to date.

The following fields are available:

• s0 Error occurred during execution of the plugin fallback. See Microsoft.Windows.SedimentLauncher.wilResult.

This event provides general information returned from the plug-in. The data collected with this event is used to help keep Windows up to date.

The following fields are available:

• HResult This is the HRESULT for detection or perform action phases of the plugin.
• Message Information message returned from a plugin containing only information internal to the plugins execution.
• PackageVersion Current package version of Remediation.

This event is sent when the Windows Update sediment remediations launcher starts running a plug-in to address issues that may be preventing the sediment device from receiving OS updates. A sediment device is one that has been on a previous OS version for an extended period. The data collected with this event is used to help keep Windows up to date.

The following fields are available:

• CV Correlation vector.
• GlobalEventCounter Client side counter which indicates ordering of events sent by this user.
• PackageVersion Current package version of Remediation.
• PluginName Name of the plugin specified for each generic plugin event.
• Result This is the HRESULT for detection or perform action phases of the plugin.

This event provides the result from the Windows internal library. The data collected with this event is used to help keep Windows up to date.

The following fields are available:

• callContext List of telemetry activities containing this error.
• currentContextId Identifier for the newest telemetry activity containing this error.
• currentContextMessage Custom message associated with the newest telemetry activity containing this error (if any).
• currentContextName Name of the newest telemetry activity containing this error.
• failureCount Number of failures seen within the binary where the error occurred.
• failureId Identifier assigned to this failure.
• failureType Indicates what type of failure was observed (exception, returned error, logged error or fail fast).
• fileName Source code file name where the error occurred.
• function Name of the function where the error occurred.
• hresult Failure error code.
• lineNumber Line number within the source code file where the error occurred.
• message Custom message associated with the failure (if any).
• module Name of the binary where the error occurred.
• originatingContextId Identifier for the oldest telemetry activity containing this error.
• originatingContextMessage Custom message associated with the oldest telemetry activity containing this error (if any).
• originatingContextName Name of the oldest telemetry activity containing this error.
• threadId Identifier of the thread the error occurred on.

This event is sent when the Windows Update sediment remediations service finds that an applicable plug-in to address issues that may be preventing the sediment device from receiving OS updates. A sediment device is one that has been on a previous OS version for an extended period. The data collected with this event is used to help keep Windows up to date.

The following fields are available:

• CV Correlation vector.
• DetectedCondition Determine whether action needs to run based on device properties.
• GlobalEventCounter Client side counter which indicates ordering of events sent by this user.
• IsSelfUpdateEnabledInOneSettings Indicates if self update is enabled in One Settings.
• IsSelfUpdateNeeded Indicates if self update is needed.
• PackageVersion Current package version of Remediation.
• PluginName Name of the plugin.
• Result This is the HRESULT for detection or perform action phases of the plugin.

This event is sent when the Windows Update sediment remediations service finishes running a plug-in to address issues that may be preventing the sediment device from receiving OS updates. A sediment device is one that has been on a previous OS version for an extended period. The data collected with this event is used to help keep Windows up to date.

The following fields are available:

• CV Correlation vector.
• FailedReasons List of reasons when the plugin action failed.
• GlobalEventCounter Client side counter which indicates ordering of events sent by this user.
• PackageVersion Current package version of Remediation.
• PluginName Name of the plugin specified for each generic plugin event.
• Result This is the HRESULT for detection or perform action phases of the plugin.
• SedimentServiceCheckTaskFunctional True/False if scheduled task check succeeded.
• SedimentServiceCurrentBytes Number of current private bytes of memory consumed by sedsvc.exe.
• SedimentServiceKillService True/False if service is marked for kill (Shell.KillService).
• SedimentServiceMaximumBytes Maximum bytes allowed for the service.
• SedimentServiceRetrievedKillService True/False if result of One Settings check for kill succeeded - we only send back one of these indicators (not for each call).
• SedimentServiceStopping True/False indicating whether the service is stopping.
• SedimentServiceTaskFunctional True/False if scheduled task is functional. If task is not functional this indicates plugins will be run.
• SedimentServiceTotalIterations Number of 5 second iterations service will wait before running again.

This event indicates whether an error condition occurred in the plug-in. The data collected with this event is used to help keep Windows up to date.

The following fields are available:

• HResult This is the HRESULT for detection or perform action phases of the plugin.
• Message Custom message associated with the failure (if any).
• PackageVersion Current package version of Remediation.

This event indicates whether an error occurred for a fallback in the plug-in. The data collected with this event is used to help keep Windows up to date.

The following fields are available:

• s0 Event returned when an error occurs for a fallback in the plugin. See Microsoft.Windows.SedimentService.wilResult.

This event provides general information returned from the plug-in. The data collected with this event is used to help keep Windows up to date.

The following fields are available:

• HResult This is the HRESULT for detection or perform action phases of the plugin.
• Message Custom message associated with the failure (if any).
• PackageVersion Current package version of Remediation.

This event is sent when the Windows Update sediment remediations service starts running a plug-in to address issues that may be preventing the sediment device from receiving OS updates. A sediment device is one that has been on a previous OS version for an extended period. The data collected with this event is used to help keep Windows up to date.

The following fields are available:

• CV The Correlation Vector.
• GlobalEventCounter The client-side counter that indicates ordering of events.
• PackageVersion The version number of the current remediation package.
• PluginName Name of the plugin specified for each generic plugin event.
• Result This is the HRESULT for Detection or Perform Action phases of the plugin.

This event provides the result from the Windows internal library. The data collected with this event is used to help keep Windows up to date.

The following fields are available:

• callContext List of telemetry activities containing this error.
• currentContextId Identifier for the newest telemetry activity containing this error.
• currentContextMessage Custom message associated with the newest telemetry activity containing this error (if any).
• currentContextName Name of the newest telemetry activity containing this error.
• failureCount Number of failures seen within the binary where the error occurred.
• failureId Identifier assigned to this failure.
• failureType Indicates what type of failure was observed (exception, returned error, logged error or fail fast).
• fileName Source code file name where the error occurred.
• function Name of the function where the error occurred.
• hresult Failure error code.
• lineNumber Line number within the source code file where the error occurred.
• message Custom message associated with the failure (if any).
• module Name of the binary where the error occurred.
• originatingContextId Identifier for the oldest telemetry activity containing this error.
• originatingContextMessage Custom message associated with the oldest telemetry activity containing this error (if any).
• originatingContextName Name of the oldest telemetry activity containing this error.
• threadId Identifier of the thread the error occurred on.

This event sends basic metadata about the SetupPlatform update installation process, to help keep Windows up to date.

The following fields are available:

• ActivityId Provides a unique ID to correlate events that occur between a activity start event, and a stop event
• ActivityName Provides a friendly name of the package type that belongs to the ActivityId (Setup, LanguagePack, GDR, Driver, etc.)
• FieldName Retrieves the event name/data point. Examples: InstallStartTime, InstallEndtime, OverallResult etc.
• GroupName Retrieves the groupname the event belongs to. Example: Install Information, DU Information, Disk Space Information etc.
• value Value associated with the corresponding event name. For example, time-related events will include the system time
• Value Value associated with the corresponding event name. For example, time-related events will include the system time

This event sends basic metadata about the update installation process generated by SetupPlatform to help keep Windows up to date.

The following fields are available:

• Name The name of the dynamic update type. Example: GDR driver

This event sends basic metadata about the update installation process generated by SetupPlatform to help keep Windows up to date.

This service retrieves events generated by SetupPlatform, the engine that drives the various deployment scenarios, to help keep Windows up to date.

The following fields are available:

• FieldName Retrieves the event name/data point. Examples: InstallStartTime, InstallEndtime, OverallResult etc.
• GroupName Retrieves the groupname the event belongs to. Example: Install Information, DU Information, Disk Space Information etc.
• Value Retrieves the value associated with the corresponding event name (Field Name). For example: For time related events this will include the system time.

Activity for deletion of a user account for devices set up for Shared PC mode as part of the Transient Account Manager to help keep Windows up to date. Deleting unused user accounts on shared devices frees up disk space to improve Windows Update success rates.

The following fields are available:

• accountType The type of account that was deleted. Example: AD, Azure AD, or Local
• userSid The security identifier of the account.
• wilActivity Windows Error Reporting data collected when there is a failure in deleting a user account with the Transient Account Manager. See wilActivity.

Activity for run of the Transient Account Manager that determines if any user accounts should be deleted for devices set up for Shared PC mode to help keep Windows up to date. Deleting unused user accounts on shared devices frees up disk space to improve Windows Update success rates

The following fields are available:

• evaluationTrigger When was the Transient Account Manager policies ran? Example: At log off or during maintenance hours
• totalAccountCount The number of accounts on a device after running the Transient Account Manager policies.
• wilActivity Windows Error Reporting data collected when there is a failure in evaluating accounts to be deleted with the Transient Account Manager. See wilActivity.

This event provides a Windows Internal Library context used for Product and Service diagnostics. The data collected with this event is used to help keep Windows up to date.

The following fields are available:

• callContext The function where the failure occurred.
• currentContextId The ID of the current call context where the failure occurred.
• currentContextMessage The message of the current call context where the failure occurred.
• currentContextName The name of the current call context where the failure occurred.
• failureCount The number of failures for this failure ID.
• failureId The ID of the failure that occurred.
• failureType The type of the failure that occurred.
• fileName The file name where the failure occurred.
• function The function where the failure occurred.
• hresult The HResult of the overall activity.
• lineNumber The line number where the failure occurred.
• message The message of the failure that occurred.
• module The module where the failure occurred.
• originatingContextId The ID of the originating call context that resulted in the failure.
• originatingContextMessage The message of the originating call context that resulted in the failure.
• originatingContextName The name of the originating call context that resulted in the failure.
• threadId The ID of the thread on which the activity is executing.

This event provides a Windows Internal Library context used for Product and Service diagnostics. The data collected with this event is used to help keep Windows up to date.

The following fields are available:

• callContext The call context stack where failure occurred.
• currentContextId The ID of the current call context where the failure occurred.
• currentContextMessage The message of the current call context where the failure occurred.
• currentContextName The name of the current call context where the failure occurred.
• failureCount The number of failures for this failure ID.
• failureId The ID of the failure that occurred.
• failureType The type of the failure that occurred.
• fileName The file name where the failure occurred.
• function The function where the failure occurred.
• hresult The HResult of the overall activity.
• lineNumber The line number where the failure occurred.
• message The message of the failure that occurred.
• module The module where the failure occurred.
• originatingContextId The ID of the originating call context that resulted in the failure.
• originatingContextMessage The message of the originating call context that resulted in the failure.
• originatingContextName The name of the originating call context that resulted in the failure.
• threadId The ID of the thread on which the activity is executing.

This event is sent when targeting logic is evaluated to determine if a device is eligible for a given action. The data collected with this event is used to help keep Windows up to date.

This event is triggered with SIH attempts to execute (e.g. install) the update or action in question. Includes important information like if the update required a reboot. The data collected with this event is used to help keep Windows up to date.

This event reports the status of an action following a reboot, should one have been required. The data collected with this event is used to help keep Windows up to date.

This event sends tracking data about the software distribution client check for content that is applicable to a device, to help keep Windows up to date.

The following fields are available:

• ActivityMatchingId Contains a unique ID identifying a single CheckForUpdates session from initialization to completion.
• AllowCachedResults Indicates if the scan allowed using cached results.
• ApplicableUpdateInfo Metadata for the updates which were detected as applicable
• BiosFamily The family of the BIOS (Basic Input Output System).
• BiosName The name of the device BIOS.
• BiosReleaseDate The release date of the device BIOS.
• BiosSKUNumber The sku number of the device BIOS.
• BIOSVendor The vendor of the BIOS.
• BiosVersion The version of the BIOS.
• BranchReadinessLevel The servicing branch configured on the device.
• CachedEngineVersion For self-initiated healing, the version of the SIH engine that is cached on the device. If the SIH engine does not exist, the value is null.
• CallerApplicationName The name provided by the caller who initiated API calls into the software distribution client.
• CapabilityDetectoidGuid The GUID for a hardware applicability detectoid that could not be evaluated.
• CDNCountryCode Two letter country abbreviation for the Content Distribution Network (CDN) location.
• CDNId The unique identifier of a specific device, used to identify how many devices are encountering success or a particular issue.
• ClientVersion The version number of the software distribution client.
• Context Gives context on where the error has occurred. Example: AutoEnable, GetSLSData, AddService, Misc, or Unknown
• CurrentMobileOperator The mobile operator the device is currently connected to.
• DeferralPolicySources Sources for any update deferral policies defined (GPO = 0x10, MDM = 0x100, Flight = 0x1000, UX = 0x10000).
• DeferredUpdates Update IDs which are currently being deferred until a later time
• DeviceModel What is the device model.
• DriverError The error code hit during a driver scan. This is 0 if no error was encountered.
• DriverExclusionPolicy Indicates if the policy for not including drivers with Windows Update is enabled.
• DriverSyncPassPerformed Were drivers scanned this time?
• EventInstanceID A globally unique identifier for event instance.
• EventScenario Indicates the purpose of sending this event - whether because the software distribution just started checking for content, or whether it was cancelled, succeeded, or failed.
• ExtendedMetadataCabUrl Hostname that is used to download an update.
• ExtendedStatusCode Secondary error code for certain scenarios where StatusCode wasn't specific enough.
• FailedUpdateGuids The GUIDs for the updates that failed to be evaluated during the scan.
• FailedUpdatesCount The number of updates that failed to be evaluated during the scan.
• FeatureUpdateDeferral The deferral period configured for feature OS updates on the device (in days).
• FeatureUpdatePause Indicates whether feature OS updates are paused on the device.
• FeatureUpdatePausePeriod The pause duration configured for feature OS updates on the device (in days).
• FlightBranch The branch that a device is on if participating in flighting (pre-release builds).
• FlightRing The ring (speed of getting builds) that a device is on if participating in flighting (pre-release builds).
• HomeMobileOperator The mobile operator that the device was originally intended to work with.
• IntentPFNs Intended application-set metadata for atomic update scenarios.
• IPVersion Indicates whether the download took place over IPv4 or IPv6
• IsWUfBDualScanEnabled Indicates if Windows Update for Business dual scan is enabled on the device.
• IsWUfBEnabled Indicates if Windows Update for Business is enabled on the device.
• MetadataIntegrityMode The mode of the update transport metadata integrity check. 0-Unknown, 1-Ignoe, 2-Audit, 3-Enforce
• MSIError The last error that was encountered during a scan for updates.
• NetworkConnectivityDetected Indicates the type of network connectivity that was detected. 0 - IPv4, 1 - IPv6
• NumberOfApplicableUpdates The number of updates which were ultimately deemed applicable to the system after the detection process is complete
• NumberOfApplicationsCategoryScanEvaluated The number of categories (apps) for which an app update scan checked
• NumberOfLoop The number of round trips the scan required
• NumberOfNewUpdatesFromServiceSync The number of updates which were seen for the first time in this scan
• NumberOfUpdatesEvaluated The total number of updates which were evaluated as a part of the scan
• NumFailedMetadataSignatures The number of metadata signatures checks which failed for new metadata synced down.
• Online Indicates if this was an online scan.
• PausedUpdates A list of UpdateIds which that currently being paused.
• PauseFeatureUpdatesEndTime If feature OS updates are paused on the device, this is the date and time for the end of the pause time window.
• PauseFeatureUpdatesStartTime If feature OS updates are paused on the device, this is the date and time for the beginning of the pause time window.
• PauseQualityUpdatesEndTime If quality OS updates are paused on the device, this is the date and time for the end of the pause time window.
• PauseQualityUpdatesStartTime If quality OS updates are paused on the device, this is the date and time for the beginning of the pause time window.
• PhonePreviewEnabled Indicates whether a phone was getting preview build, prior to flighting (pre-release builds) being introduced.
• ProcessName The process name of the caller who initiated API calls, in the event where CallerApplicationName was not provided.
• QualityUpdateDeferral The deferral period configured for quality OS updates on the device (in days).
• QualityUpdatePause Indicates whether quality OS updates are paused on the device.
• QualityUpdatePausePeriod The pause duration configured for quality OS updates on the device (in days).
• RelatedCV The previous Correlation Vector that was used before swapping with a new one
• ScanDurationInSeconds The number of seconds a scan took
• ScanEnqueueTime The number of seconds it took to initialize a scan
• ServiceGuid An ID which represents which service the software distribution client is checking for content (Windows Update, Microsoft Store, etc.).
• ServiceUrl The environment URL a device is configured to scan with
• ShippingMobileOperator The mobile operator that a device shipped on.
• StatusCode Indicates the result of a CheckForUpdates event (success, cancellation, failure code HResult).
• SyncType Describes the type of scan the event was
• SystemBIOSMajorRelease Major version of the BIOS.
• SystemBIOSMinorRelease Minor version of the BIOS.
• TargetMetadataVersion For self-initiated healing, this is the target version of the SIH engine to download (if needed). If not, the value is null.
• TotalNumMetadataSignatures The total number of metadata signatures checks done for new metadata that was synced down.
• WebServiceRetryMethods Web service method requests that needed to be retried to complete operation.
• WUDeviceID The unique identifier of a specific device, used to identify how many devices are encountering success or a particular issue.

This event sends data on whether the Update Service has been called to execute an upgrade, to help keep Windows up to date.

The following fields are available:

• BiosFamily The family of the BIOS (Basic Input Output System).
• BiosName The name of the device BIOS.
• BiosReleaseDate The release date of the device BIOS.
• BiosSKUNumber The sku number of the device BIOS.
• BIOSVendor The vendor of the BIOS.
• BiosVersion The version of the BIOS.
• BundleId Identifier associated with the specific content bundle; should not be all zeros if the bundleID was found.
• BundleRevisionNumber Identifies the revision number of the content bundle
• CallerApplicationName The name provided by the caller who initiated API calls into the software distribution client
• ClientVersion The version number of the software distribution client.
• DeviceModel What is the device model.
• EventInstanceID A globally unique identifier for event instance.
• EventScenario State of call
• EventType Possible values are "Child", "Bundle", or "Driver".
• FlightId The specific ID of the flight the device is getting
• HandlerType Indicates the kind of content (app, driver, windows patch, etc.)
• RevisionNumber Unique revision number of Update
• ServerId Identifier for the service to which the software distribution client is connecting, such as Windows Update and Microsoft Store.
• SystemBIOSMajorRelease Major version of the BIOS.
• SystemBIOSMinorRelease Minor version of the BIOS.
• UpdateId Unique Update ID
• WUDeviceID UniqueDeviceID

This event sends tracking data about the software distribution client download of the content for that update, to help keep Windows up to date.

The following fields are available:

• ActiveDownloadTime How long the download took, in seconds, excluding time where the update wasn't actively being downloaded.
• AppXBlockHashValidationFailureCount A count of the number of blocks that have failed validation after being downloaded.
• AppXDownloadScope Indicates the scope of the download for application content.
• BiosFamily The family of the BIOS (Basic Input Output System).
• BiosName The name of the device BIOS.
• BiosReleaseDate The release date of the device BIOS.
• BiosSKUNumber The SKU number of the device BIOS.
• BIOSVendor The vendor of the BIOS.
• BiosVersion The version of the BIOS.
• BundleBytesDownloaded Number of bytes downloaded for the specific content bundle.
• BundleId Identifier associated with the specific content bundle.
• BundleRepeatFailFlag Indicates whether this particular update bundle had previously failed to download.
• BundleRevisionNumber Identifies the revision number of the content bundle.
• BytesDownloaded How many bytes were downloaded for an individual piece of content (not the entire bundle).
• CachedEngineVersion The version of the “Self-Initiated Healing” (SIH) engine that is cached on the device, if applicable.
• CallerApplicationName The name provided by the application that initiated API calls into the software distribution client.
• CbsDownloadMethod Indicates whether the download was a full- or a partial-file download.
• CDNCountryCode Two letter country abbreviation for the Content Distribution Network (CDN) location.
• CDNId ID which defines which CDN the software distribution client downloaded the content from.
• ClientManagedByWSUSServer Indicates whether the client is managed by Windows Server Update Services (WSUS).
• ClientVersion The version number of the software distribution client.
• CurrentMobileOperator The mobile operator the device is currently connected to.
• DeviceModel The model of the device.
• DeviceOEM Identifies the Original Equipment Manufacturer (OEM) of the device.
• DownloadPriority Indicates whether a download happened at background, normal, or foreground priority.
• DownloadScenarioId A unique ID for a given download, used to tie together Windows Update and Delivery Optimizer events.
• DownloadType Differentiates the download type of “Self-Initiated Healing” (SIH) downloads between Metadata and Payload downloads.
• Edition Identifies the edition of Windows currently running on the device.
• EventInstanceID A globally unique identifier for event instance.
• EventNamespaceID The ID of the test events environment.
• EventScenario Indicates the purpose for sending this event: whether because the software distribution just started downloading content; or whether it was cancelled, succeeded, or failed.
• EventType Identifies the type of the event (Child, Bundle, or Driver).
• ExtendedStatusCode Secondary error code for certain scenarios where StatusCode wasn't specific enough.
• FeatureUpdatePause Indicates whether feature OS updates are paused on the device.
• FlightBranch The branch that a device is on if participating in flighting (pre-release builds).
• FlightBuildNumber If this download was for a flight (pre-release build), this indicates the build number of that flight.
• FlightId The specific ID of the flight (pre-release build) the device is getting.
• FlightRing The ring (speed of getting builds) that a device is on if participating in flighting (pre-release builds).
• HandlerType Indicates what kind of content is being downloaded (app, driver, windows patch, etc.).
• HardwareId If this download was for a driver targeted to a particular device model, this ID indicates the model of the device.
• HomeMobileOperator The mobile operator that the device was originally intended to work with.
• HostName The parent URL the content is downloading from.
• IPVersion Indicates whether the download took place over IPv4 or IPv6.
• IsAOACDevice Indicates whether the device is an Always On, Always Connected (AOAC) device.
• IsDependentSet Indicates whether a driver is a part of a larger System Hardware/Firmware Update
• IsWUfBDualScanEnabled Indicates if Windows Update for Business dual scan is enabled on the device.
• IsWUfBEnabled Indicates if Windows Update for Business is enabled on the device.
• NetworkCostBitMask A flag indicating the cost of the network (congested, fixed, variable, over data limit, roaming, etc.) used for downloading the update content.
• NetworkRestrictionStatus More general version of NetworkCostBitMask, specifying whether Windows considered the current network to be "metered."
• PackageFullName The package name of the content.
• PhonePreviewEnabled Indicates whether a phone was opted-in to getting preview builds, prior to flighting (pre-release builds) being introduced.
• PlatformRole The role of the OS platform (Desktop, Mobile, Workstation, etc.).
• ProcessName The process name of the caller who initiated API calls, in the event where CallerApplicationName was not provided.
• ProcessorArchitecture Processor architecture of the system (x86, AMD64, ARM).
• QualityUpdatePause Indicates whether quality OS updates are paused on the device.
• RelatedCV The Correlation Vector that was used before the most recent change to a new Correlation Vector.
• RepeatFailFlag Indicates whether this specific piece of content had previously failed to download.
• RevisionNumber The revision number of the specified piece of content.
• ServiceGuid A unique identifier for the service that the software distribution client is installing content for (Windows Update, Microsoft Store, etc).
• Setup360Phase Identifies the active phase of the upgrade download if the current download is for an Operating System upgrade.
• ShippingMobileOperator The mobile operator linked to the device when the device shipped.
• StatusCode Indicates the result of a Download event (success, cancellation, failure code HResult).
• SystemBIOSMajorRelease Major version of the BIOS.
• SystemBIOSMinorRelease Minor version of the BIOS.
• TargetGroupId For drivers targeted to a specific device model, this ID indicates the distribution group of devices receiving that driver.
• TargetingVersion For drivers targeted to a specific device model, this is the version number of the drivers being distributed to the device.
• TargetMetadataVersion The version of the currently downloading (or most recently downloaded) package.
• ThrottlingServiceHResult Result code (success/failure) while contacting a web service to determine whether this device should download content yet.
• TimeToEstablishConnection Time (in milliseconds) it took to establish the connection prior to beginning downloaded.
• TotalExpectedBytes The total size (in Bytes) expected to be downloaded.
• UpdateId An identifier associated with the specific piece of content.
• UpdateID An identifier associated with the specific piece of content.
• UpdateImportance Indicates whether the content was marked as Important, Recommended, or Optional.
• UsedDO Indicates whether the download used the Delivery Optimization (DO) service.
• UsedSystemVolume Indicates whether the content was downloaded to the device's main system storage drive, or an alternate storage drive.
• WUDeviceID The unique identifier of a specific device, used to identify how many devices are encountering success or a particular issue.
• WUSetting Indicates the users' current updating settings.

This event provides a checkpoint between each of the Windows Update download phases for UUP content. The data collected with this event is used to help keep Windows up to date, secure, and performing properly.

The following fields are available:

• CallerApplicationName The name provided by the caller who initiated API calls into the software distribution client
• ClientVersion The version number of the software distribution client
• EventScenario Indicates the purpose of sending this event - whether because the software distribution just started checking for content, or whether it was cancelled, succeeded, or failed
• EventType Possible values are "Child", "Bundle", "Release" or "Driver"
• ExtendedStatusCode Secondary error code for certain scenarios where StatusCode wasn't specific enough
• FileId A hash that uniquely identifies a file
• FileName Name of the downloaded file
• FlightId The unique identifier for each flight
• RelatedCV The previous Correlation Vector that was used before swapping with a new one
• RevisionNumber Unique revision number of Update
• ServiceGuid An ID which represents which service the software distribution client is checking for content (Windows Update, Microsoft Store, etc.)
• StatusCode Indicates the result of a CheckForUpdates event (success, cancellation, failure code HResult)
• UpdateId Unique Update ID
• WUDeviceID The unique identifier of a specific device, used to identify how many devices are encountering success or a particular issue

This event allows tracking of ongoing downloads and contains data to explain the current state of the download. The data collected with this event is used to help keep Windows up to date, secure, and performing properly.

The following fields are available:

• BundleID Identifier associated with the specific content bundle. If this value is found, it shouldn't report as all zeros
• BytesTotal Total bytes to transfer for this content
• BytesTransferred Total bytes transferred for this content at the time of heartbeat
• ConnectionStatus Indicates the connectivity state of the device at the time of heartbeat
• CurrentError Last (transient) error encountered by the active download
• DownloadFlags Flags indicating if power state is ignored
• DownloadState Current state of the active download for this content (queued, suspended, or progressing)
• IsNetworkMetered Indicates whether Windows considered the current network to be ?metered"
• MOAppDownloadLimit Mobile operator cap on size of application downloads, if any
• MOUpdateDownloadLimit Mobile operator cap on size of operating system update downloads, if any
• PowerState Indicates the power state of the device at the time of heartbeat (DC, AC, Battery Saver, or Connected Standby)
• RelatedCV The previous correlation vector that was used by the client, before swapping with a new one
• ResumeCount Number of times this active download has resumed from a suspended state
• ServiceID Identifier for the service to which the software distribution client is connecting (Windows Update, Microsoft Store, etc)
• SuspendCount Number of times this active download has entered a suspended state
• SuspendReason Last reason for why this active download entered a suspended state

This event sends tracking data about the software distribution client installation of the content for that update, to help keep Windows up to date.

The following fields are available:

• BiosFamily The family of the BIOS (Basic Input Output System).
• BiosName The name of the device BIOS.
• BiosReleaseDate The release date of the device BIOS.
• BiosSKUNumber The sku number of the device BIOS.
• BIOSVendor The vendor of the BIOS.
• BiosVersion The version of the BIOS.
• BundleBytesDownloaded How many bytes were downloaded for the specific content bundle?
• BundleId Identifier associated with the specific content bundle; should not be all zeros if the bundleID was found.
• BundleRepeatFailFlag Has this particular update bundle previously failed to install?
• BundleRevisionNumber Identifies the revision number of the content bundle.
• CachedEngineVersion For self-initiated healing, the version of the SIH engine that is cached on the device. If the SIH engine does not exist, the value is null.
• CallerApplicationName The name provided by the caller who initiated API calls into the software distribution client.
• CbsDownloadMethod Was the download a full download or a partial download?
• ClientManagedByWSUSServer Is the client managed by Windows Server Update Services (WSUS)?
• ClientVersion The version number of the software distribution client.
• CSIErrorType The stage of CBS installation where it failed.
• CurrentMobileOperator Mobile operator that device is currently connected to.
• DeviceModel What is the device model.
• DeviceOEM What OEM does this device belong to.
• DownloadPriority The priority of the download activity.
• DownloadScenarioId A unique ID for a given download used to tie together Windows Update and DO events.
• DriverPingBack Contains information about the previous driver and system state.
• Edition Indicates the edition of Windows being used.
• EventInstanceID A globally unique identifier for event instance.
• EventNamespaceID Indicates whether the event succeeded or failed. Has the format EventType+Event where Event is Succeeded, Cancelled, Failed, etc.
• EventScenario Indicates the purpose of sending this event - whether because the software distribution just started installing content, or whether it was cancelled, succeeded, or failed.
• EventType Possible values are Child, Bundle, or Driver.
• ExtendedErrorCode The extended error code.
• ExtendedStatusCode Secondary error code for certain scenarios where StatusCode wasn't specific enough.
• FeatureUpdatePause Are feature OS updates paused on the device?
• FlightBranch The branch that a device is on if participating in the Windows Insider Program.
• FlightBuildNumber If this installation was for a Windows Insider build, this is the build number of that build.
• FlightId The specific ID of the Windows Insider build the device is getting.
• FlightRing The ring that a device is on if participating in the Windows Insider Program.
• HandlerType Indicates what kind of content is being installed. Example: app, driver, Windows update
• HardwareId If this install was for a driver targeted to a particular device model, this ID indicates the model of the device.
• HomeMobileOperator The mobile operator that the device was originally intended to work with.
• IntentPFNs Intended application-set metadata for atomic update scenarios.
• IsAOACDevice Is it Always On, Always Connected? (Mobile device usage model)
• IsDependentSet Is the driver part of a larger System Hardware/Firmware update?
• IsFinalOutcomeEvent Does this event signal the end of the update/upgrade process?
• IsFirmware Is this update a firmware update?
• IsSuccessFailurePostReboot Did it succeed and then fail after a restart?
• IsWUfBDualScanEnabled Is Windows Update for Business dual scan enabled on the device?
• IsWUfBEnabled Is Windows Update for Business enabled on the device?
• MergedUpdate Was the OS update and a BSP update merged for installation?
• MsiAction The stage of MSI installation where it failed.
• MsiProductCode The unique identifier of the MSI installer.
• PackageFullName The package name of the content being installed.
• PhonePreviewEnabled Indicates whether a phone was getting preview build, prior to flighting being introduced.
• PlatformRole The PowerPlatformRole.
• ProcessName The process name of the caller who initiated API calls, in the event where CallerApplicationName was not provided.
• ProcessorArchitecture Processor architecture of the system (x86, AMD64, ARM).
• QualityUpdatePause Are quality OS updates paused on the device?
• RelatedCV The previous Correlation Vector that was used before swapping with a new one
• RepeatFailFlag Indicates whether this specific piece of content had previously failed to install.
• RepeatSuccessInstallFlag Indicates whether this specific piece of content had previously installed successful, for example if another user had already installed it.
• RevisionNumber The revision number of this specific piece of content.
• ServiceGuid An ID which represents which service the software distribution client is installing content for (Windows Update, Microsoft Store, etc.).
• Setup360Phase If the install is for an operating system upgrade, indicates which phase of the upgrade is underway.
• ShippingMobileOperator The mobile operator that a device shipped on.
• StatusCode Indicates the result of an installation event (success, cancellation, failure code HResult).
• SystemBIOSMajorRelease Major version of the BIOS.
• SystemBIOSMinorRelease Minor version of the BIOS.
• TargetGroupId For drivers targeted to a specific device model, this ID indicates the distribution group of devices receiving that driver.
• TargetingVersion For drivers targeted to a specific device model, this is the version number of the drivers being distributed to the device.
• TransactionCode The ID which represents a given MSI installation
• UpdateId Unique update ID
• UpdateID An identifier associated with the specific piece of content.
• UpdateImportance Indicates whether a piece of content was marked as Important, Recommended, or Optional.
• UsedSystemVolume Indicates whether the content was downloaded and then installed from the device's main system storage drive, or an alternate storage drive.
• WUDeviceID The unique identifier of a specific device, used to identify how many devices are encountering success or a particular issue.
• WUSetting Indicates the user's current updating settings.

This event sends data about the ability of Windows to discover the location of a backend server with which it must connect to perform updates or content acquisition, in order to determine disruptions in availability of update services and provide context for Windows Update errors. The data collected with this event is used to help keep Windows up to date, secure, and performing properly.

The following fields are available:

• EventScenario Indicates the purpose of sending this event - whether because the software distribution just started checking for content, or whether it was cancelled, succeeded, or failed
• HResult Indicates the result code of the event (success, cancellation, failure code HResult)
• IsBackground Indicates whether the SLS discovery event took place in the foreground or background
• NextExpirationTime Indicates when the SLS cab expires
• ServiceID An ID which represents which service the software distribution client is connecting to (Windows Update, Microsoft Store, etc.)
• SusClientId The unique device ID controlled by the software distribution client
• UrlPath Path to the SLS cab that was downloaded
• WUAVersion The version number of the software distribution client

This event sends data about an AppX app that has been updated from the Microsoft Store, including what app needs an update and what version/architecture is required, in order to understand and address problems with apps getting required updates. The data collected with this event is used to help keep Windows up to date, secure, and performing properly.

The following fields are available:

• ApplicableUpdateInfo Metadata for the updates which were detected as applicable.
• CallerApplicationName The name provided by the caller who initiated API calls into the software distribution client.
• IntentPFNs Intended application-set metadata for atomic update scenarios.
• NumberOfApplicableUpdates The number of updates ultimately deemed applicable to the system after the detection process is complete.
• RelatedCV The previous Correlation Vector that was used before swapping with a new one.
• ServiceGuid An ID that represents which service the software distribution client is connecting to (Windows Update, Microsoft Store, etc.).
• WUDeviceID The unique device ID controlled by the software distribution client.

This event helps to identify whether update content has been tampered with and protects against man-in-the-middle attack. The data collected with this event is used to help keep Windows up to date, secure, and performing properly.

The following fields are available:

• EndpointUrl The endpoint URL where the device obtains update metadata. This is used to distinguish between test, staging, and production environments.
• EventScenario The purpose of this event, such as scan started, scan succeeded, or scan failed.
• ExtendedStatusCode Secondary status code for certain scenarios where StatusCode was not specific enough.
• LeafCertId The integral ID from the FragmentSigning data for the certificate that failed.
• ListOfSHA256OfIntermediateCerData A semicolon delimited list of base64 encoding of hashes for the Base64CerData in the FragmentSigning data of an intermediate certificate.
• MetadataIntegrityMode The mode of the transport metadata integrity check. 0 = unknown; 1 = ignore; 2 = audit; 3 = enforce
• MetadataSignature A base64-encoded string of the signature associated with the update metadata (specified by revision ID).
• RawMode The raw unparsed mode string from the SLS response. This field is null if not applicable.
• RawValidityWindowInDays The raw unparsed validity window string in days of the timestamp token. This field is null if not applicable.
• RevisionId The revision ID for a specific piece of content.
• RevisionNumber The revision number for a specific piece of content.
• ServiceGuid Identifies the service to which the software distribution client is connected, Example: Windows Update or Microsoft Store
• SHA256OfLeafCerData A base64 encoding of the hash for the Base64CerData in the FragmentSigning data of the leaf certificate.
• SHA256OfLeafCertPublicKey A base64 encoding of the hash of the Base64CertData in the FragmentSigning data of the leaf certificate.
• SHA256OfTimestampToken An encoded string of the timestamp token.
• SignatureAlgorithm The hash algorithm for the metadata signature.
• SLSPrograms A test program to which a device may have opted in. Example: Insider Fast
• StatusCode The status code of the event.
• TimestampTokenCertThumbprint The thumbprint of the encoded timestamp token.
• TimestampTokenId The time this was created. It is encoded in a timestamp blob and will be zero if the token is malformed.
• UpdateId The update ID for a specific piece of content.
• ValidityWindowInDays The validity window that's in effect when verifying the timestamp.

The event sends basic info on the reason that Windows 10 was not updated due to compatibility issues, previous rollbacks, or admin policies. The data collected with this event is used to help keep Windows up to date.

The following fields are available:

• ApplicabilityBlockedReason Blocked due to an applicability issue.
• BlockWuUpgrades The upgrade assistant is currently blocked.
• clientID An identification of the current release of Update Assistant.
• CloverTrail This device is Clovertrail.
• DeviceIsMdmManaged This device is MDM managed.
• IsNetworkAvailable If the device network is not available.
• IsNetworkMetered If network is metered.
• IsSccmManaged This device is managed by Configuration Manager.
• NewlyInstalledOs OS is newly installed quiet period.
• PausedByPolicy Updates are paused by policy.
• RecoveredFromRS3 Previously recovered from RS3.
• RS1UninstallActive Blocked due to an active RS1 uninstall.
• RS3RollBacks Exceeded number of allowable RS3 rollbacks.
• triggerTaskSource Describe which task launches this instance.
• WsusManaged This device is WSUS managed.
• ZeroExhaust This device is zero exhaust.

The event sends basic info when a device was blocked or prevented from updating to the latest Windows 10 version. The data collected with this event is used to help keep Windows up to date.

The following fields are available:

• clientID An identification of the current release of Update Assistant.
• denyReason All the reasons why the Update Assistant was prevented from launching. Bitmask with values from UpdateAssistant.cpp eUpgradeModeReason.
• triggerTaskSource Describe which task launches this instance.

This event indicates that Update Assistant Orchestrator failed to launch Update Assistant. The data collected with this event is used to help keep Windows up to date.

The following fields are available:

• clientID An identification of the current release of Update Assistant.
• hResult Error code of the Update Assistant Orchestrator failure.
• triggerTaskSource Describe which task launches this instance.

This event indicates that One Settings was not queried by update assistant. The data collected with this event is used to help keep Windows up to date.

The following fields are available:

• clientID An identification of the current release of Update Assistant.
• hResult Error code of One Settings query failure.

This event sends basic information on whether the device should be updated to the latest Windows 10 version. The data collected with this event is used to help keep Windows up to date.

The following fields are available:

• autoStartRunCount The auto start run count of Update Assistant.
• clientID The ID of the current release of Update Assistant.
• launchMode Indicates the type of launch performed.
• launchTypeReason A bitmask of all the reasons for type of launch.
• triggerTaskSource Indicates which task launches this instance.
• UALaunchRunCount Total number of times Update Assistant launched.

The event sends basic info on whether the Windows 10 update notification has previously launched. The data collected with this event is used to help keep Windows up to date.

The following fields are available:

• clientID ID of the current release of Update Assistant.
• restoreReason All the reasons for the restore.
• triggerTaskSource Indicates which task launches this instance.

This event sends data during the download request phase of updating Windows. The data collected with this event is used to help keep Windows secure and up to date.

The following fields are available:

• DeletedCorruptFiles Indicates if UpdateAgent found any corrupt payload files and whether the payload was deleted.
• ErrorCode The error code returned for the current download request phase.
• FlightId Unique ID for each flight.
• ObjectId Unique value for each Update Agent mode.
• PackageCountOptional Number of optional packages requested.
• PackageCountRequired Number of required packages requested.
• PackageCountTotal Total number of packages needed.
• PackageCountTotalCanonical Total number of canonical packages.
• PackageCountTotalDiff Total number of diff packages.
• PackageCountTotalExpress Total number of express packages.
• PackageSizeCanonical Size of canonical packages in bytes
• PackageSizeDiff Size of diff packages in bytes
• PackageSizeExpress Size of express packages in bytes
• RangeRequestState Represents the state of the download range request.
• RelatedCV Correlation vector value generated from the latest USO scan.
• Result Result of the download request phase of update.
• ScenarioId The scenario ID. Example: MobileUpdate, DesktopLanguagePack, DesktopFeatureOnDemand, or DesktopDriverUpdate
• SessionId Unique value for each Update Agent mode attempt.
• UpdateId Unique ID for each update.

This event collects information when Express could not be used, and the update had to fall back to “canonical” during the new UUP (Unified Update Platform) update scenario; which is leveraged by both Mobile and Desktop. The data collected with this event is used to help keep Windows secure and up to date.

The following fields are available:

• FlightId Unique ID for the flight (test instance version).
• ObjectId The unique value for each Update Agent mode.
• PackageCount The number of packages that fell back to “canonical”.
• PackageList PackageIDs which fell back to “canonical”.
• RelatedCV The correlation vector value generated from the latest USO (Update Service Orchestrator) scan.
• ScenarioId The ID of the update scenario.
• SessionId The ID of the update attempt.
• UpdateId The ID of the update.

This event sends data during the initialize phase of updating Windows. The data collected with this event is used to help keep Windows secure and up to date.

The following fields are available:

• ErrorCode The error code returned for the current initialize phase.
• FlightId Unique ID for each flight.
• FlightMetadata Contains the FlightId and the build being flighted.
• ObjectId Unique value for each Update Agent mode.
• RelatedCV Correlation vector value generated from the latest USO scan.
• Result Result of the initialize phase of update. 0 = Succeeded, 1 = Failed, 2 = Cancelled, 3 = Blocked, 4 = BlockCancelled
• ScenarioId The scenario ID. Example: MobileUpdate, DesktopLanguagePack, DesktopFeatureOnDemand, or DesktopDriverUpdate
• SessionData Contains instructions to update agent for processing FODs and DUICs (Null for other scenarios).
• SessionId Unique value for each Update Agent mode attempt .
• UpdateId Unique ID for each update.

This event sends data during the install phase of updating Windows. The data collected with this event is used to help keep Windows secure and up to date.

The following fields are available:

• ErrorCode The error code returned for the current install phase.
• FlightId Unique ID for each flight.
• ObjectId Unique value for each Update Agent mode.
• RelatedCV Correlation vector value generated from the latest scan.
• Result Result of the install phase of update. 0 = Succeeded 1 = Failed, 2 = Cancelled, 3 = Blocked, 4 = BlockCancelled
• ScenarioId The scenario ID. Example: MobileUpdate, DesktopLanguagePack, DesktopFeatureOnDemand, or DesktopDriverUpdate
• SessionId Unique value for each Update Agent mode attempt.
• UpdateId Unique ID for each update.

This event sends data on the merge phase when updating Windows. The data collected with this event is used to help keep Windows secure and up to date.

The following fields are available:

• ErrorCode The error code returned for the current reboot.
• FlightId Unique ID for the flight (test instance version).
• ObjectId The unique value for each Update Agent mode.
• RelatedCV The correlation vector value generated from the latest USO (Update Service Orchestrator) scan.
• Result The HResult of the event.
• ScenarioId The ID of the update scenario.
• SessionId The ID of the update attempt.
• UpdateId The ID of the update.

This event sends data for the start of each mode during the process of updating Windows. The data collected with this event is used to help keep Windows secure and up to date.

The following fields are available:

• FlightId Unique ID for each flight.
• Mode Indicates that the Update Agent mode that has started. 1 = Initialize, 2 = DownloadRequest, 3 = Install, 4 = Commit
• ObjectId Unique value for each Update Agent mode.
• RelatedCV The correlation vector value generated from the latest scan.
• ScenarioId The scenario ID. Example: MobileUpdate, DesktopLanguagePack, DesktopFeatureOnDemand, or DesktopDriverUpdate
• SessionId Unique value for each Update Agent mode attempt.
• UpdateId Unique ID for each update.

This event sends data during the launching of the setup box when updating Windows. The data collected with this event is used to help keep Windows secure and up to date.

The following fields are available:

• FlightId Unique ID for each flight.
• ObjectId Unique value for each Update Agent mode.
• Quiet Indicates whether setup is running in quiet mode. 0 = false 1 = true
• RelatedCV Correlation vector value generated from the latest scan.
• SandboxSize The size of the sandbox folder on the device.
• ScenarioId The scenario ID. Example: MobileUpdate, DesktopLanguagePack, DesktopFeatureOnDemand, or DesktopDriverUpdate
• SessionId Unique value for each Update Agent mode attempt.
• SetupMode Setup mode 1 = predownload, 2 = install, 3 = finalize
• UpdateId Unique ID for each update.

This event collects information regarding the commit phase of the new Unified Update Platform (UUP) update scenario, which is leveraged by both Mobile and Desktop. The data collected with this event is used to help keep Windows secure and up to date.

The following fields are available:

• ErrorCode The error code returned for the current install phase.
• FlightId Unique ID for each flight.
• ObjectId Unique value for each Update Agent mode.
• RelatedCV Correlation vector value generated from the latest USO scan.
• Result Outcome of the install phase of the update.
• ScenarioId Indicates the update scenario.
• SessionId Unique value for each update attempt.
• UpdateId Unique ID for each update.

This event sends data for the download request phase of updating Windows via the new Unified Update Platform (UUP) scenario. Applicable to PC and Mobile. The data collected with this event is used to help keep Windows secure and up to date.

The following fields are available:

• DeletedCorruptFiles Boolean indicating whether corrupt payload was deleted.
• DownloadRequests Number of times a download was retried.
• ErrorCode The error code returned for the current download request phase.
• ExtensionName Indicates whether the payload is related to Operating System content or a plugin.
• FlightId Unique ID for each flight.
• InternalFailureResult Indicates a non-fatal error from a plugin.
• ObjectId Unique value for each Update Agent mode (same concept as InstanceId for Setup360).
• PackageCountOptional # of optional packages requested.
• PackageCountRequired # of required packages requested.
• PackageCountTotal Total # of packages needed.
• PackageCountTotalCanonical Total number of canonical packages.
• PackageCountTotalDiff Total number of diff packages.
• PackageCountTotalExpress Total number of express packages.
• PackageExpressType Type of express package.
• PackageSizeCanonical Size of canonical packages in bytes.
• PackageSizeDiff Size of diff packages in bytes.
• PackageSizeExpress Size of express packages in bytes.
• RangeRequestState Indicates the range request type used.
• RelatedCV Correlation vector value generated from the latest USO scan.
• Result Outcome of the download request phase of update.
• ScenarioId Indicates the update scenario.
• SessionId Unique value for each attempt (same value for initialize, download, install commit phases).
• UpdateId Unique ID for each Update.

This event collects information regarding the expansion phase of the new Unified Update Platform (UUP) update scenario, which is leveraged by both Mobile and Desktop. The data collected with this event is used to help keep Windows secure and up to date.

The following fields are available:

• ElapsedTickCount Time taken for expand phase.
• EndFreeSpace Free space after expand phase.
• EndSandboxSize Sandbox size after expand phase.
• ErrorCode The error code returned for the current install phase.
• FlightId Unique ID for each flight.
• ObjectId Unique value for each Update Agent mode.
• RelatedCV Correlation vector value generated from the latest USO scan.
• ScenarioId Indicates the update scenario.
• SessionId Unique value for each update attempt.
• StartFreeSpace Free space before expand phase.
• StartSandboxSize Sandbox size after expand phase.
• UpdateId Unique ID for each update.

This event sends data for the initialize phase of updating Windows via the new Unified Update Platform (UUP) scenario, which is applicable to both PCs and Mobile. The data collected with this event is used to help keep Windows secure and up to date.

The following fields are available:

• ErrorCode The error code returned for the current install phase.
• FlightId Unique ID for each flight.
• FlightMetadata Contains the FlightId and the build being flighted.
• ObjectId Unique value for each Update Agent mode.
• RelatedCV Correlation vector value generated from the latest USO scan.
• Result Outcome of the install phase of the update.
• ScenarioId Indicates the update scenario.
• SessionData String containing instructions to update agent for processing FODs and DUICs (Null for other scenarios).
• SessionId Unique value for each update attempt.
• UpdateId Unique ID for each update.

This event sends data for the install phase of updating Windows. The data collected with this event is used to help keep Windows secure and up to date.

The following fields are available:

• ErrorCode The error code returned for the current install phase.
• FlightId Unique value for each Update Agent mode (same concept as InstanceId for Setup360).
• ObjectId Correlation vector value generated from the latest USO scan.
• RelatedCV Correlation vector value generated from the latest USO scan.
• Result The result for the current install phase.
• ScenarioId Indicates the update scenario.
• SessionId Unique value for each update attempt.
• UpdateId Unique ID for each update.

This event sends data indicating the result of each update agent mitigation. The data collected with this event is used to help keep Windows secure and up to date.

The following fields are available:

• Applicable Indicates whether the mitigation is applicable for the current update.
• CommandCount The number of command operations in the mitigation entry.
• CustomCount The number of custom operations in the mitigation entry.
• FileCount The number of file operations in the mitigation entry.
• FlightId Unique identifier for each flight.
• Index The mitigation index of this particular mitigation.
• MitigationScenario The update scenario in which the mitigation was executed.
• Name The friendly name of the mitigation.
• ObjectId Unique value for each Update Agent mode.
• OperationIndex The mitigation operation index (in the event of a failure).
• OperationName The friendly name of the mitigation operation (in the event of failure).
• RegistryCount The number of registry operations in the mitigation entry.
• RelatedCV The correlation vector value generated from the latest USO scan.
• Result The HResult of this operation.
• ScenarioId The update agent scenario ID.
• SessionId Unique value for each update attempt.
• TimeDiff The amount of time spent performing the mitigation (in 100-nanosecond increments).
• UpdateId Unique ID for each Update.

This event sends a summary of all the update agent mitigations available for an this update. The data collected with this event is used to help keep Windows secure and up to date.

This event sends data for the start of each mode during the process of updating Windows via the new Unified Update Platform (UUP) scenario. Applicable to both PCs and Mobile. The data collected with this event is used to help keep Windows secure and up to date.

The following fields are available:

• FlightId Unique ID for each flight.
• Mode Indicates the mode that has started.
• ObjectId Unique value for each Update Agent mode.
• RelatedCV Correlation vector value generated from the latest USO scan.
• ScenarioId Indicates the update scenario.
• SessionId Unique value for each update attempt.
• UpdateId Unique ID for each update.
• Version Version of update

This event collects information regarding the post reboot phase of the new UUP (Unified Update Platform) update scenario; which is leveraged by both Mobile and Desktop. The data collected with this event is used to help keep Windows secure and up to date.

The UpdateAgent_SetupBoxLaunch event sends data for the launching of the setup box when updating Windows via the new Unified Update Platform (UUP) scenario. This event is only applicable to PCs. The data collected with this event is used to help keep Windows secure and up to date.

The following fields are available:

• ContainsExpressPackage Indicates whether the download package is express.
• FlightId Unique ID for each flight.
• FreeSpace Free space on OS partition.
• InstallCount Number of install attempts using the same sandbox.
• ObjectId Unique value for each Update Agent mode.
• Quiet Indicates whether setup is running in quiet mode.
• RelatedCV Correlation vector value generated from the latest USO scan.
• SandboxSize Size of the sandbox.
• ScenarioId Indicates the update scenario.
• SessionId Unique value for each update attempt.
• SetupMode Mode of setup to be launched.
• UpdateId Unique ID for each Update.
• UserSession Indicates whether install was invoked by user actions.

This event indicates whether devices received additional or critical supplemental content during an OS Upgrade, to help keep Windows up to date and secure.

This event returns data about the download of supplemental packages critical to upgrading a device to the next version of Windows. The data collected with this event is used to help keep Windows secure and up to date.

This event determines whether devices received additional or critical supplemental content during an OS upgrade. The data collected with this event is used to help keep Windows secure and up to date.

This event sends data indicating that the device has started the downlevel phase of the upgrade, to help keep Windows up to date and secure.

The following fields are available:

• ClientId If using Windows Update, this will be the Windows Update client ID that is passed to Setup. In Media setup, the default value is Media360, but it can be overwritten by the caller to a unique value.
• HostOSBuildNumber The build number of the downlevel OS.
• HostOsSkuName The operating system edition which is running Setup360 instance (downlevel OS).
• InstanceId A unique GUID that identifies each instance of setuphost.exe.
• ReportId In the Windows Update scenario, this is the updateID that is passed to Setup. In media setup, this is the GUID for the install.wim.
• Setup360Extended More detailed information about phase/action when the potential failure occurred.
• Setup360Mode The phase of Setup360 (for example, Predownload, Install, Finalize, Rollback).
• Setup360Result The result of Setup360 (HRESULT used to diagnose errors).
• Setup360Scenario The Setup360 flow type (for example, Boot, Media, Update, MCT).
• SetupVersionBuildNumber The build number of Setup360 (build number of the target OS).
• State Exit state of given Setup360 run. Example: succeeded, failed, blocked, cancelled.
• TestId An ID that uniquely identifies a group of events.
• WuId This is the Windows Update Client ID. In the Windows Update scenario, this is the same as the clientId.

This event sends data indicating that the device has started the phase of finalizing the upgrade, to help keep Windows up-to-date and secure.

The following fields are available:

• ClientId With Windows Update, this will be the Windows Update client ID that is passed to Setup. In Media setup, default value is Media360, but can be overwritten by the caller to a unique value.
• HostOSBuildNumber The build number of the previous OS.
• HostOsSkuName The OS edition which is running Setup360 instance (previous OS).
• InstanceId A unique GUID that identifies each instance of setuphost.exe
• ReportId With Windows Update, this is the updateID that is passed to Setup. In media setup, this is the GUID for the install.wim.
• Setup360Extended More detailed information about the phase/action when the potential failure occurred.
• Setup360Mode The phase of Setup360. Example: Predownload, Install, Finalize, Rollback.
• Setup360Result The result of Setup360. This is an HRESULT error code that is used to diagnose errors.
• Setup360Scenario The Setup360 flow type. Example: Boot, Media, Update, MCT.
• SetupVersionBuildNumber The build number of Setup360 (build number of target OS).
• State The exit state of a Setup360 run. Example: succeeded, failed, blocked, cancelled.
• TestId ID that uniquely identifies a group of events.
• WuId This is the Windows Update Client ID. With Windows Update, this is the same as the clientId.

This event sends data regarding OS updates and upgrades from Windows 7, Windows 8, and Windows 10. Specifically, it indicates the outcome of an OS uninstall. The data collected with this event is used to help keep Windows secure and up to date.

The following fields are available:

• ClientId For Windows Update, this will be the Windows Update client ID that is passed to Setup. In Media setup, default value is Media360, but can be overwritten by the caller to a unique value.
• HostOSBuildNumber The build number of the previous OS.
• HostOsSkuName The OS edition which is running the Setup360 instance (previous OS).
• InstanceId A unique GUID that identifies each instance of setuphost.exe.
• ReportId For Windows Update, this will be the Windows Update client ID that is passed to Setup. In Media setup, this is the GUID for the install.wim.
• Setup360Extended Detailed information about the phase or action when the potential failure occurred.
• Setup360Mode The phase of Setup360. Example: Predownload, Install, Finalize, Rollback.
• Setup360Result The result of Setup360. This is an HRESULT error code that is used to diagnose errors.
• Setup360Scenario The Setup360 flow type. Example: Boot, Media, Update, MCT
• SetupVersionBuildNumber The build number of Setup360 (build number of target OS).
• State Exit state of a Setup360 run. Example: succeeded, failed, blocked, cancelled.
• TestId ID that uniquely identifies a group of events.
• WuId Windows Update client ID.

This event sends data indicating that the device has invoked the post reboot install phase of the upgrade, to help keep Windows up-to-date.

The following fields are available:

• ClientId With Windows Update, this is the Windows Update client ID that is passed to Setup. In Media setup, the default value is Media360, but can be overwritten by the caller to a unique value.
• HostOSBuildNumber The build number of the previous OS.
• HostOsSkuName The OS edition which is running Setup360 instance (previous OS).
• InstanceId A unique GUID that identifies each instance of setuphost.exe.
• ReportId With Windows Update, this is the updateID that is passed to Setup. In media setup, this is the GUID for the install.wim.
• Setup360Extended Extension of result - more granular information about phase/action when the potential failure happened
• Setup360Mode The phase of Setup360. Example: Predownload, Install, Finalize, Rollback
• Setup360Result The result of Setup360. This is an HRESULT error code that's used to diagnose errors.
• Setup360Scenario The Setup360 flow type. Example: Boot, Media, Update, MCT
• SetupVersionBuildNumber The build number of Setup360 (build number of target OS).
• State The exit state of a Setup360 run. Example: succeeded, failed, blocked, cancelled
• TestId A string to uniquely identify a group of events.
• WuId This is the Windows Update Client ID. With Windows Update, this is the same as ClientId.

This event sends data indicating that the device has invoked the predownload quiet phase of the upgrade, to help keep Windows up to date.

The following fields are available:

• ClientId Using Windows Update, this will be the Windows Update client ID that is passed to Setup. In Media setup, default value is Media360, but can be overwritten by the caller to a unique value.
• HostOSBuildNumber The build number of the previous OS.
• HostOsSkuName The OS edition which is running Setup360 instance (previous operating system).
• InstanceId A unique GUID that identifies each instance of setuphost.exe.
• ReportId Using Windows Update, this is the updateID that is passed to Setup. In media setup, this is the GUID for the install.wim.
• Setup360Extended Detailed information about the phase/action when the potential failure occurred.
• Setup360Mode The phase of Setup360. Example: Predownload, Install, Finalize, Rollback.
• Setup360Result The result of Setup360. This is an HRESULT error code that is used to diagnose errors.
• Setup360Scenario The Setup360 flow type. Example: Boot, Media, Update, MCT.
• SetupVersionBuildNumber The build number of Setup360 (build number of target OS).
• State The exit state of a Setup360 run. Example: succeeded, failed, blocked, canceled.
• TestId ID that uniquely identifies a group of events.
• WuId This is the Windows Update Client ID. Using Windows Update, this is the same as the clientId.

This event sends data regarding OS Updates and Upgrades from Windows 7.X, Windows 8.X, Windows 10 and RS, to help keep Windows up-to-date and secure. Specifically, it indicates the outcome of the PredownloadUX portion of the update process.

The following fields are available:

• ClientId For Windows Update, this will be the Windows Update client ID that is passed to Setup. In Media setup, default value is Media360, but can be overwritten by the caller to a unique value.
• HostOSBuildNumber The build number of the previous operating system.
• HostOsSkuName The OS edition which is running the Setup360 instance (previous operating system).
• InstanceId Unique GUID that identifies each instance of setuphost.exe.
• ReportId For Windows Update, this will be the Windows Update client ID that is passed to Setup. In Media setup, this is the GUID for the install.wim.
• Setup360Extended Detailed information about the phase/action when the potential failure occurred.
• Setup360Mode The phase of Setup360. Example: Predownload, Install, Finalize, Rollback.
• Setup360Result The result of Setup360. This is an HRESULT error code that can be used to diagnose errors.
• Setup360Scenario The Setup360 flow type. Example: Boot, Media, Update, MCT.
• SetupVersionBuildNumber The build number of Setup360 (build number of the target OS).
• State The exit state of the Setup360 run. Example: succeeded, failed, blocked, cancelled.
• TestId ID that uniquely identifies a group of events.
• WuId Windows Update client ID.

This event sends data indicating that the device has invoked the preinstall quiet phase of the upgrade, to help keep Windows up-to-date.

The following fields are available:

• ClientId With Windows Update, this will be the Windows Update client ID that is passed to Setup. In Media setup, default value is Media360, but can be overwritten by the caller to a unique value.
• HostOSBuildNumber The build number of the previous OS.
• HostOsSkuName The OS edition which is running Setup360 instance (previous OS).
• InstanceId A unique GUID that identifies each instance of setuphost.exe
• ReportId With Windows Update, this is the updateID that is passed to Setup. In media setup, this is the GUID for the install.wim.
• Setup360Extended Detailed information about the phase/action when the potential failure occurred.
• Setup360Mode The phase of Setup360. Example: Predownload, Install, Finalize, Rollback.
• Setup360Result The result of Setup360. This is an HRESULT error code that can be used to diagnose errors.
• Setup360Scenario Setup360 flow type (Boot, Media, Update, MCT).
• SetupVersionBuildNumber The build number of Setup360 (build number of target OS).
• State The exit state of a Setup360 run. Example: succeeded, failed, blocked, cancelled.
• TestId A string to uniquely identify a group of events.
• WuId This is the Windows Update Client ID. With Windows Update, this is the same as the clientId.

This event sends data regarding OS updates and upgrades from Windows 7, Windows 8, and Windows 10, to help keep Windows up-to-date. Specifically, it indicates the outcome of the PreinstallUX portion of the update process.

The following fields are available:

• ClientId For Windows Update, this will be the Windows Update client ID that is passed to Setup. In Media setup, default value is Media360, but can be overwritten by the caller to a unique value.
• HostOSBuildNumber The build number of the previous OS.
• HostOsSkuName The OS edition which is running the Setup360 instance (previous OS).
• InstanceId A unique GUID that identifies each instance of setuphost.exe.
• ReportId For Windows Update, this will be the Windows Update client ID that is passed to Setup. In Media setup, this is the GUID for the install.wim.
• Setup360Extended Detailed information about the phase/action when the potential failure occurred.
• Setup360Mode The phase of Setup360. Example: Predownload, Install, Finalize, Rollback.
• Setup360Result The result of Setup360. This is an HRESULT error code that is used to diagnose errors.
• Setup360Scenario The Setup360 flow type, Example: Boot, Media, Update, MCT.
• SetupVersionBuildNumber The build number of Setup360 (build number of target OS).
• State The exit state of a Setup360 run. Example: succeeded, failed, blocked, cancelled.
• TestId A string to uniquely identify a group of events.
• WuId Windows Update client ID.

This event sends data about OS deployment scenarios, to help keep Windows up-to-date.

The following fields are available:

• ClientId Retrieves the upgrade ID. In the Windows Update scenario, this will be the Windows Update client ID. In Media setup, default value is Media360, but can be overwritten by the caller to a unique value.
• FieldName Retrieves the data point.
• FlightData Specifies a unique identifier for each group of Windows Insider builds.
• InstanceId Retrieves a unique identifier for each instance of a setup session.
• ReportId Retrieves the report ID.
• ScenarioId Retrieves the deployment scenario.
• Value Retrieves the value associated with the corresponding FieldName.

This event helps determine whether the device received supplemental content during an operating system upgrade, to help keep Windows up-to-date.

This event sends data indicating the result of each setup mitigation. The data collected with this event is used to help keep Windows secure and up to date.

This event sends a summary of all the setup mitigations available for this update. The data collected with this event is used to help keep Windows secure and up to date.

This event collects information regarding the post reboot phase of the new UUP (Unified Update Platform) update scenario; which is leveraged by both Mobile and Desktop. The data collected with this event is used to help keep Windows secure and up to date.

This event sends data indicating that the device has invoked the unexpected event phase of the upgrade, to help keep Windows up to date.

The following fields are available:

• ClientId With Windows Update, this will be the Windows Update client ID that is passed to Setup. In Media setup, default value is Media360, but can be overwritten by the caller to a unique value.
• HostOSBuildNumber The build number of the previous OS.
• HostOsSkuName The OS edition which is running Setup360 instance (previous OS).
• InstanceId A unique GUID that identifies each instance of setuphost.exe
• ReportId With Windows Update, this is the updateID that is passed to Setup. In media setup, this is the GUID for the install.wim.
• Setup360Extended Detailed information about the phase/action when the potential failure occurred.
• Setup360Mode The phase of Setup360. Example: Predownload, Install, Finalize, Rollback.
• Setup360Result The result of Setup360. This is an HRESULT error code that can be used used to diagnose errors.
• Setup360Scenario The Setup360 flow type. Example: Boot, Media, Update, MCT.
• SetupVersionBuildNumber The build number of Setup360 (build number of target OS).
• State The exit state of a Setup360 run. Example: succeeded, failed, blocked, cancelled.
• TestId A string to uniquely identify a group of events.
• WuId This is the Windows Update Client ID. With Windows Update, this is the same as the clientId.

This event sends binary data from the collected dump file whenever a bug check occurs, to help keep Windows up to date. The is the OneCore version of this event.

The following fields are available:

• BootId Uint32 identifying the boot number for this device.
• BugCheckCode Uint64 "bugcheck code" that identifies a proximate cause of the bug check.
• BugCheckParameter1 Uint64 parameter providing additional information.
• BugCheckParameter2 Uint64 parameter providing additional information.
• BugCheckParameter3 Uint64 parameter providing additional information.
• BugCheckParameter4 Uint64 parameter providing additional information.
• DumpFileAttributes Codes that identify the type of data contained in the dump file
• DumpFileSize Size of the dump file
• IsValidDumpFile True if the dump file is valid for the debugger, false otherwise
• ReportId WER Report Id associated with this bug check (used for finding the corresponding report archive in Watson).

This event sends data about crashes for both native and managed applications, to help keep Windows up to date. The data includes information about the crashing process and a summary of its exception record.

The following fields are available:

• AppName The name of the app that crashed.
• AppSessionGuid The unique ID used as a correlation vector for process instances in the telemetry backend.
• AppTimeStamp The date time stamp of the app.
• AppVersion The version of the app that crashed.
• ExceptionCode The exception code returned by the process that crashed.
• ExceptionOffset The address where the exception occurred.
• Flags Flags indicating how reporting is done. For example, queue the report, do not offer JIT debugging, do not terminate the process after reporting.
• ModName The module name of the process that crashed.
• ModTimeStamp The date time stamp of the module.
• ModVersion The module version of the process that crashed.
• PackageFullName The package name if the crashing application is packaged.
• PackageRelativeAppId The relative application ID if the crashing application is packaged.
• ProcessArchitecture The architecture of the system.
• ProcessCreateTime The time of creation of the process that crashed.
• ProcessId The ID of the process that crashed.
• ReportId A unique ID used to identify the report. This can be used to track the report.
• TargetAppId The target app ID.
• TargetAppVer The target app version.

This event lists the reboot reason when an app is going to reboot.

The following fields are available:

• BootId The system boot ID.
• BoottimeSinceLastShutdown The boot time since the last shutdown.
• RebootReason Reason for the reboot.

This is report application event for Microsoft Store client. The data collected with this event is used to help keep Windows up to date and secure.

This event sends tracking data about when the Store app activation via protocol URI is in progress, to help keep Windows up to date.

The following fields are available:

• correlationVectorRoot Identifies multiple events within a session/sequence. Initial value before incrementation or extension.
• protocolUri Protocol URI used to activate the store.
• reason The reason for activating the store.

This event is sent when an installation or update is canceled by a user or the system and is used to help keep Windows Apps up to date and secure.

The following fields are available:

• AggregatedPackageFullNames The names of all packages to be downloaded and installed.
• AttemptNumber Number of retry attempts before it was canceled.
• BundleId The Item Bundle ID.
• CategoryId The Item Category ID.
• ClientAppId The identity of the app that initiated this operation.
• HResult The result code of the last action performed before this operation.
• IntentPFNs Intent Product Family Name
• IsBundle Is this a bundle?
• IsInteractive Was this requested by a user?
• IsMandatory Was this a mandatory update?
• IsRemediation Was this a remediation install?
• IsRestore Is this automatically restoring a previously acquired product?
• IsUpdate Flag indicating if this is an update.
• ParentBundleId The product ID of the parent (if this product is part of a bundle).
• PFN The product family name of the product being installed.
• ProductId The identity of the package or packages being installed.
• SystemAttemptNumber The total number of automatic attempts at installation before it was canceled.
• UpdateId Update ID (if this is an update)
• UserAttemptNumber The total number of user attempts at installation before it was canceled.
• WUContentId The Windows Update content ID.

This event is sent when an inventory of the apps installed is started to determine whether updates for those apps are available. It's used to help keep Windows up-to-date and secure.

This event is sent when the Store Agent cache is refreshed with any available package updates. It's used to help keep Windows up-to-date and secure.

This event is sent when an app update or installation is canceled while in interactive mode. This can be canceled by the user or the system. It's used to help keep Windows up-to-date and secure.

The following fields are available:

• AggregatedPackageFullNames The names of all package or packages to be downloaded and installed.
• AttemptNumber Total number of installation attempts.
• BundleId The identity of the Windows Insider build that is associated with this product.
• CategoryId The identity of the package or packages being installed.
• ClientAppId The identity of the app that initiated this operation.
• IntentPFNs Intent Product Family Name
• IsBundle Is this a bundle?
• IsInteractive Was this requested by a user?
• IsMandatory Is this a mandatory update?
• IsRemediation Is this repairing a previous installation?
• IsRestore Is this an automatic restore of a previously acquired product?
• IsUpdate Is this a product update?
• ParentBundleId The product ID of the parent (if this product is part of a bundle).
• PFN The name of all packages to be downloaded and installed.
• PreviousHResult The previous HResult code.
• PreviousInstallState Previous installation state before it was canceled.
• ProductId The name of the package or packages requested for installation.
• RelatedCV Correlation Vector of a previous performed action on this product.
• SystemAttemptNumber Total number of automatic attempts to install before it was canceled.
• UserAttemptNumber Total number of user attempts to install before it was canceled.
• WUContentId The Windows Update content ID.

This event is sent at the end of app installations or updates to help keep Windows up-to-date and secure.

The following fields are available:

• CatalogId The Store Product ID of the app being installed.
• HResult HResult code of the action being performed.
• IsBundle Is this a bundle?
• PackageFamilyName The name of the package being installed.
• ProductId The Store Product ID of the product being installed.
• SkuId Specific edition of the item being installed.

This event is sent after the license is acquired when a product is being installed. It's used to help keep Windows up-to-date and secure.

The following fields are available:

• AggregatedPackageFullNames Includes a set of package full names for each app that is part of an atomic set.
• AttemptNumber The total number of attempts to acquire this product.
• BundleId The bundle ID
• CategoryId The identity of the package or packages being installed.
• ClientAppId The identity of the app that initiated this operation.
• HResult HResult code to show the result of the operation (success/failure).
• IntentPFNs Intent Product Family Name
• IsBundle Is this a bundle?
• IsInteractive Did the user initiate the installation?
• IsMandatory Is this a mandatory update?
• IsRemediation Is this repairing a previous installation?
• IsRestore Is this happening after a device restore?
• IsUpdate Is this an update?
• IsWin32 Flag indicating if this is a Win32app.
• ParentBundledId The product's parent bundle ID.
• ParentBundleId The parent bundle ID (if it's part of a bundle).
• PFN Product Family Name of the product being installed.
• ProductId The Store Product ID for the product being installed.
• SystemAttemptNumber The number of attempts by the system to acquire this product.
• UpdateId The update ID (if this is an update)
• UserAttemptNumber The number of attempts by the user to acquire this product
• WUContentId The Windows Update content ID.

This event is sent after an app is downloaded to help keep Windows up-to-date and secure.

The following fields are available:

• AggregatedPackageFullNames The name of all packages to be downloaded and installed.
• AttemptNumber Number of retry attempts before it was canceled.
• BundleId The identity of the Windows Insider build associated with this product.
• CategoryId The identity of the package or packages being installed.
• ClientAppId The identity of the app that initiated this operation.
• DownloadSize The total size of the download.
• ExtendedHResult Any extended HResult error codes.
• HResult The result code of the last action performed.
• IntentPFNs Intent Product Family Name
• IsBundle Is this a bundle?
• IsInteractive Is this initiated by the user?
• IsMandatory Is this a mandatory installation?
• IsRemediation Is this repairing a previous installation?
• IsRestore Is this a restore of a previously acquired product?
• IsUpdate Is this an update?
• IsWin32 Flag indicating if this is a Win32 app (unused).
• ParentBundleId The parent bundle ID (if it's part of a bundle).
• PFN The Product Family Name of the app being download.
• ProductId The Store Product ID for the product being installed.
• SystemAttemptNumber The number of attempts by the system to download.
• UpdateId Update ID (if this is an update)
• UserAttemptNumber The number of attempts by the user to download.
• WUContentId The Windows Update content ID.

This event is sent when an app update requires an updated Framework package and the process starts to download it. It is used to help keep Windows up-to-date and secure.

The following fields are available:

• HResult The result code of the last action performed before this operation.

This event is sent after sending the inventory of the products installed to determine whether updates for those products are available. It's used to help keep Windows up-to-date and secure.

The following fields are available:

• HResult The result code of the last action performed before this operation.

This event is sent after a product has been installed to help keep Windows up-to-date and secure.

The following fields are available:

• AggregatedPackageFullNames The names of all packages to be downloaded and installed.
• AttemptNumber The number of retry attempts before it was canceled.
• BundleId The identity of the build associated with this product.
• CategoryId The identity of the package or packages being installed.
• ClientAppId The identity of the app that initiated this operation.
• ExtendedHResult The extended HResult error code.
• HResult The result code of the last action performed.
• IntentPFNs Intent Product Family Name
• IsBundle Is this a bundle?
• IsInteractive Is this an interactive installation?
• IsMandatory Is this a mandatory installation?
• IsRemediation Is this repairing a previous installation?
• IsRestore Is this automatically restoring a previously acquired product?
• IsUpdate Is this an update?
• IsWin32 Flag indicating if this a Win32 app (unused).
• ParentBundleId The product ID of the parent (if this product is part of a bundle).
• PFN Product Family Name of the product being installed.
• ProductId The Store Product ID for the product being installed.
• SystemAttemptNumber The total number of system attempts.
• UpdateId Update ID (if this is an update)
• UserAttemptNumber The total number of user attempts.
• WUContentId The Windows Update content ID.

This event is sent after a scan for product updates to determine if there are packages to install. It's used to help keep Windows up-to-date and secure.

The following fields are available:

• ClientAppId The identity of the app that initiated this operation.
• HResult The result code of the last action performed.
• IsApplicability Is this request to only check if there are any applicable packages to install?
• IsInteractive Is this user requested?
• IsOnline Is the request doing an online check?

This event is sent after searching for update packages to install. It is used to help keep Windows up-to-date and secure.

The following fields are available:

• AggregatedPackageFullNames The names of all packages to be downloaded and installed.
• AttemptNumber The total number of retry attempts before it was canceled.
• BundleId The identity of the build associated with this product.
• CategoryId The identity of the package or packages being installed.
• ClientAppId The identity of the app that initiated this operation.
• HResult The result code of the last action performed.
• IntentPFNs The licensing identity of this package.
• IsBundle Is this a bundle?
• IsInteractive Is this user requested?
• IsMandatory Is this a mandatory update?
• IsRemediation Is this repairing a previous installation?
• IsRestore Is this restoring previously acquired content?
• IsUpdate Is this an update?
• IsWin32 Flag indicating if this a Win32 app (unused).
• ParentBundleId The product ID of the parent (if this product is part of a bundle).
• PFN The name of the package or packages requested for install.
• ProductId The Store Product ID for the product being installed.
• SystemAttemptNumber The total number of system attempts.
• UpdateId Update ID (if this is an update)
• UserAttemptNumber The total number of user attempts.
• WUContentId The Windows Update content ID.

This event is sent after restoring user data (if any) that needs to be restored following a product install. It is used to keep Windows up-to-date and secure.

The following fields are available:

• AggregatedPackageFullNames The name of all packages to be downloaded and installed.
• AttemptNumber The total number of retry attempts before it was canceled.
• BundleId The identity of the build associated with this product.
• CategoryId The identity of the package or packages being installed.
• ClientAppId The identity of the app that initiated this operation.
• HResult The result code of the last action performed.
• IntentPFNs The licensing identity of this package.
• IsBundle Is this a bundle?
• IsInteractive Is this user requested?
• IsMandatory Is this a mandatory update?
• IsRemediation Is this repairing a previous installation?
• IsRestore Is this restoring previously acquired content?
• IsUpdate Is this an update?
• ParentBundleId The product ID of the parent (if this product is part of a bundle).
• PFN The name of the package or packages requested for install.
• ProductId The Store Product ID for the product being installed.
• SystemAttemptNumber The total number of system attempts.
• UserAttemptNumber The total number of system attempts.
• WUContentId The Windows Update content ID.

This event happens after a scan for available app updates. It's used to help keep Windows up-to-date and secure.

The following fields are available:

• HResult The result code of the last action performed.

This event is sent at the end of an app install or update to help keep Windows up-to-date and secure.

The following fields are available:

• FailedRetry Indicates whether the installation or update retry was successful.
• HResult The HResult code of the operation.
• PFN The Package Family Name of the app that is being installed or updated.
• ProductId The product ID of the app that is being updated or installed.

This event is sent at the beginning of an app install or update to help keep Windows up-to-date and secure.

The following fields are available:

• PFN The Package Family Name of the app that is being installed or updated.
• ProductId The product ID of the app that is being updated or installed.

This event is sent when a product install or update is initiated, to help keep Windows up-to-date and secure.

The following fields are available:

• BundleId The identity of the build associated with this product.
• CatalogId If this product is from a private catalog, the Store Product ID for the product being installed.
• ProductId The Store Product ID for the product being installed.
• SkuId Specific edition ID being installed.
• VolumePath The disk path of the installation.

This event is sent when a product install or update is paused (either by a user or the system), to help keep Windows up-to-date and secure.

The following fields are available:

• AggregatedPackageFullNames The names of all packages to be downloaded and installed.
• AttemptNumber The total number of retry attempts before it was canceled.
• BundleId The identity of the build associated with this product.
• CategoryId The identity of the package or packages being installed.
• ClientAppId The identity of the app that initiated this operation.
• IntentPFNs The licensing identity of this package.
• IsBundle Is this a bundle?
• IsInteractive Is this user requested?
• IsMandatory Is this a mandatory update?
• IsRemediation Is this repairing a previous installation?
• IsRestore Is this restoring previously acquired content?
• IsUpdate Is this an update?
• ParentBundleId The product ID of the parent (if this product is part of a bundle).
• PFN The Product Full Name.
• PreviousHResult The result code of the last action performed before this operation.
• PreviousInstallState Previous state before the installation or update was paused.
• ProductId The Store Product ID for the product being installed.
• RelatedCV Correlation Vector of a previous performed action on this product.
• SystemAttemptNumber The total number of system attempts.
• UserAttemptNumber The total number of user attempts.
• WUContentId The Windows Update content ID.

This event is sent when a product install or update is resumed (either by a user or the system), to help keep Windows up-to-date and secure.

The following fields are available:

• AggregatedPackageFullNames The names of all packages to be downloaded and installed.
• AttemptNumber The number of retry attempts before it was canceled.
• BundleId The identity of the build associated with this product.
• CategoryId The identity of the package or packages being installed.
• ClientAppId The identity of the app that initiated this operation.
• HResult The result code of the last action performed before this operation.
• IntentPFNs Intent Product Family Name
• IsBundle Is this a bundle?
• IsInteractive Is this user requested?
• IsMandatory Is this a mandatory update?
• IsRemediation Is this repairing a previous installation?
• IsRestore Is this restoring previously acquired content?
• IsUpdate Is this an update?
• IsUserRetry Did the user initiate the retry?
• ParentBundleId The product ID of the parent (if this product is part of a bundle).
• PFN The name of the package or packages requested for install.
• PreviousHResult The previous HResult error code.
• PreviousInstallState Previous state before the installation was paused.
• ProductId The Store Product ID for the product being installed.
• RelatedCV Correlation Vector for the original install before it was resumed.
• SystemAttemptNumber The total number of system attempts.
• UserAttemptNumber The total number of user attempts.
• WUContentId The Windows Update content ID.

This event is sent when a product install or update is resumed by a user or on installation retries, to help keep Windows up-to-date and secure.

The following fields are available:

• ProductId The Store Product ID for the product being installed.

This event is sent when searching for update packages to install, to help keep Windows up-to-date and secure.

The following fields are available:

• CatalogId The Store Catalog ID for the product being installed.
• ProductId The Store Product ID for the product being installed.
• SkuId Specific edition of the app being updated.

This event occurs when an update is requested for an app, to help keep Windows up-to-date and secure.

The following fields are available:

• PFamN The name of the app that is requested for update.

This event describes when a download was canceled with Delivery Optimization. It's used to understand and address problems regarding downloads. The data collected with this event is used to help keep Windows up to date.

The following fields are available:

• background Is the download being done in the background?
• bytesFromCDN The number of bytes received from a CDN source.
• bytesFromGroupPeers The number of bytes received from a peer in the same group.
• bytesFromIntPeers The number of bytes received from peers not in the same LAN or in the same group.
• bytesFromPeers The number of bytes received from a peer in the same LAN.
• cdnErrorCodes A list of CDN connection errors since the last FailureCDNCommunication event.
• cdnErrorCounts The number of times each error in cdnErrorCodes was encountered.
• clientTelId A random number used for device sampling.
• doErrorCode The Delivery Optimization error code that was returned.
• errorCode The error code that was returned.
• experimentId When running a test, this is used to correlate events that are part of the same test.
• fileID The ID of the file being downloaded.
• isVpn Indicates whether the device is connected to a VPN (Virtual Private Network).
• scenarioID The ID of the scenario.
• sessionID The ID of the file download session.
• updateID The ID of the update being downloaded.
• usedMemoryStream TRUE if the download is using memory streaming for App downloads.

This event describes when a download has completed with Delivery Optimization. It's used to understand and address problems regarding downloads. The data collected with this event is used to help keep Windows up to date.

The following fields are available:

• background Is the download a background download?
• bytesFromCDN The number of bytes received from a CDN source.
• bytesFromGroupPeers The number of bytes received from a peer in the same domain group.
• bytesFromIntPeers The number of bytes received from peers not in the same LAN or in the same domain group.
• bytesFromPeers The number of bytes received from a peer in the same LAN.
• bytesRequested The total number of bytes requested for download.
• cdnConnectionCount The total number of connections made to the CDN.
• cdnErrorCodes A list of CDN connection errors since the last FailureCDNCommunication event.
• cdnErrorCounts The number of times each error in cdnErrorCodes was encountered.
• cdnIp The IP address of the source CDN.
• clientTelId A random number used for device sampling.
• doErrorCode The Delivery Optimization error code that was returned.
• downlinkBps The maximum measured available download bandwidth (in bytes per second).
• downlinkUsageBps The download speed (in bytes per second).
• downloadMode The download mode used for this file download session.
• experimentId When running a test, this is used to correlate with other events that are part of the same test.
• fileID The ID of the file being downloaded.
• fileSize The size of the file being downloaded.
• groupConnectionCount The total number of connections made to peers in the same group.
• internetConnectionCount The total number of connections made to peers not in the same LAN or the same group.
• isVpn Is the device connected to a Virtual Private Network?
• lanConnectionCount The total number of connections made to peers in the same LAN.
• numPeers The total number of peers used for this download.
• restrictedUpload Is the upload restricted?
• scenarioID The ID of the scenario.
• sessionID The ID of the download session.
• totalTimeMs Duration of the download (in seconds).
• updateID The ID of the update being downloaded.
• uplinkBps The maximum measured available upload bandwidth (in bytes per second).
• uplinkUsageBps The upload speed (in bytes per second).
• usedMemoryStream TRUE if the download is using memory streaming for App downloads.

This event represents a temporary suspension of a download with Delivery Optimization. It's used to understand and address problems regarding downloads. The data collected with this event is used to help keep Windows up to date.

The following fields are available:

• background Is the download a background download?
• clientTelId A random number used for device sampling.
• errorCode The error code that was returned.
• experimentId When running a test, this is used to correlate with other events that are part of the same test.
• fileID The ID of the file being paused.
• isVpn Is the device connected to a Virtual Private Network?
• reasonCode The reason for pausing the download.
• scenarioID The ID of the scenario.
• sessionID The ID of the download session.
• updateID The ID of the update being paused.

This event sends data describing the start of a new download to enable Delivery Optimization. It's used to understand and address problems regarding downloads. The data collected with this event is used to help keep Windows up to date.

The following fields are available:

• background Indicates whether the download is happening in the background.
• cdnUrl The URL of the source CDN.
• clientTelId A random number used for device sampling.
• costFlags A set of flags representing network cost.
• deviceProfile Identifies the usage or form factor (such as Desktop, Xbox, or VM).
• diceRoll Random number used for determining if a client will use peering.
• doClientVersion The version of the Delivery Optimization client.
• doErrorCode The Delivery Optimization error code that was returned.
• downloadMode The download mode used for this file download session (CdnOnly = 0, Lan = 1, Group = 2, Internet = 3, Simple = 99, Bypass = 100).
• errorCode The error code that was returned.
• experimentId ID used to correlate client/services calls that are part of the same test during A/B testing.
• fileID The ID of the file being downloaded.
• filePath The path to where the downloaded file will be written.
• groupID ID for the group.
• isVpn Indicates whether the device is connected to a Virtual Private Network.
• jobID The ID of the Windows Update job.
• minDiskSizeGB The minimum disk size (in GB) policy set for the device to allow peering with delivery optimization.
• minDiskSizePolicyEnforced Indicates whether there is an enforced minimum disk size requirement for peering.
• minFileSizePolicy The minimum content file size policy to allow the download using peering with delivery optimization.
• peerID The ID for this delivery optimization client.
• scenarioID The ID of the scenario.
• sessionID The ID for the file download session.
• updateID The ID of the update being downloaded.
• usedMemoryStream Indicates whether the download used memory streaming.

This event represents a failure to download from a CDN with Delivery Optimization. It's used to understand and address problems regarding downloads. The data collected with this event is used to help keep Windows up to date.

The following fields are available:

• cdnHeaders The HTTP headers returned by the CDN.
• cdnIp The IP address of the CDN.
• cdnUrl The URL of the CDN.
• clientTelId A random number used for device sampling.
• errorCode The error code that was returned.
• errorCount The total number of times this error code was seen since the last FailureCdnCommunication event was encountered.
• experimentId When running a test, this is used to correlate with other events that are part of the same test.
• fileID The ID of the file being downloaded.
• httpStatusCode The HTTP status code returned by the CDN.
• isHeadRequest The type of HTTP request that was sent to the CDN. Example: HEAD or GET
• requestSize The size of the range requested from the CDN.
• responseSize The size of the range response received from the CDN.
• sessionID The ID of the download session.

This event represents a Windows Update job error. It allows for investigation of top errors. The data collected with this event is used to help keep Windows up to date.

The following fields are available:

• clientTelId A random number used for device sampling.
• errorCode The error code returned.
• experimentId When running a test, this is used to correlate with other events that are part of the same test.
• fileID The ID of the file being downloaded.
• jobID The Windows Update job ID.

This event sends data collected at the end of the Data Migration Framework (DMF) and parameters involved in its invocation, to help keep Windows up to date.

The following fields are available:

• MigrationDurationInMilliseconds How long the DMF migration took (in milliseconds)
• MigrationEndTime A system timestamp of when the DMF migration completed.
• RevisionNumbers A collection of revision numbers for the updates associated with the DMF session.
• UpdateIds A collection of GUIDs for updates that are associated with the DMF session.
• WuClientId The GUID of the Windows Update client responsible for triggering the DMF migration

This event sends data collected at the beginning of the Data Migration Framework (DMF) and parameters involved in its invocation, to help keep Windows up to date.

The following fields are available:

• MigrationMicrosoftPhases Revision numbers for the updates that were installed.
• MigrationOEMPhases WU Update IDs for the updates that were installed.
• MigrationStartTime The timestamp representing the beginning of the DMF migration
• RevisionNumbers A collection of the revision numbers associated with the UpdateIds.
• UpdateIds A collection of GUIDs identifying the upgrades that are running.
• WuClientId The GUID of the Windows Update client invoking DMF

This event sends DMF migrator data to help keep Windows up to date.

The following fields are available:

• CurrentStep This is the last step the migrator reported before returning a result. This tells us how far through the individual migrator the device was before failure.
• ErrorCode The result (as an HRESULT) of the migrator that just completed.
• MigratorId A GUID identifying the migrator that just completed.
• MigratorName The name of the migrator that just completed.
• RunDurationInSeconds The time it took for the migrator to complete.
• TotalSteps Migrators report progress in number of completed steps against the total steps. This is the total number of steps.

This event indicates that a notification dialog box is about to be displayed to user. The data collected with this event is used to help keep Windows secure and up to date.

The following fields are available:

• AcceptAutoModeLimit The maximum number of days for a device to automatically enter Auto Reboot mode.
• AutoToAutoFailedLimit The maximum number of days for Auto Reboot mode to fail before the RebootFailed dialog box is shown.
• DeviceLocalTime The local time on the device sending the event.
• EngagedModeLimit The number of days to switch between DTE dialog boxes.
• EnterAutoModeLimit The maximum number of days for a device to enter Auto Reboot mode.
• ETag OneSettings versioning value.
• IsForcedEnabled Indicates whether Forced Reboot mode is enabled for this device.
• IsUltimateForcedEnabled Indicates whether Ultimate Forced Reboot mode is enabled for this device.
• NotificationUxState Indicates which dialog box is shown.
• NotificationUxStateString Indicates which dialog box is shown.
• RebootUxState Indicates the state of the restart (Engaged, Auto, Forced, or UltimateForced).
• RebootUxStateString Indicates the state of the restart (Engaged, Auto, Forced, or UltimateForced).
• RebootVersion Version of DTE.
• SkipToAutoModeLimit The minimum length of time to pass in restart pending before a device can be put into auto mode.
• UpdateId The ID of the update that is pending restart to finish installation.
• UpdateRevision The revision of the update that is pending restart to finish installation.

This event indicates that the Enhanced Engaged restart "accept automatically" dialog box was displayed. The data collected with this event is used to help keep Windows secure and up to date.

The following fields are available:

• DeviceLocalTime The local time on the device sending the event.
• ETag OneSettings versioning value.
• ExitCode Indicates how users exited the dialog box.
• RebootVersion Version of DTE.
• UpdateId The ID of the update that is pending restart to finish installation.
• UpdateRevision The revision of the update that is pending restart to finish installation.
• UserResponseString The option that user chose on this dialog box.

This event indicates that the Enhanced Engaged restart "first reminder" dialog box was displayed. The data collected with this event is used to help keep Windows secure and up to date.

The following fields are available:

• DeviceLocalTime The local time on the device sending the event.
• ETag OneSettings versioning value.
• ExitCode Indicates how users exited the dialog box.
• RebootVersion Version of DTE.
• UpdateId The ID of the update that is pending restart to finish installation.
• UpdateRevision The revision of the update that is pending restart to finish installation.
• UserResponseString The option that user chose in this dialog box.

This event indicates that the Enhanced Engaged restart "forced precursor" dialog box was displayed. The data collected with this event is used to help keep Windows secure and up to date.

The following fields are available:

• DeviceLocalTime The local time on the device sending the event.
• ETag OneSettings versioning value.
• ExitCode Indicates how users exited the dialog box.
• RebootVersion Version of DTE.
• UpdateId The ID of the update that is pending restart to finish installation.
• UpdateRevision The revision of the update that is pending restart to finish installation.
• UserResponseString The option that the user chose in this dialog box.

This event indicates that the Enhanced Engaged "forced warning" dialog box was displayed. The data collected with this event is used to help keep Windows secure and up to date.

The following fields are available:

• DeviceLocalTime The local time on the device sending the event.
• ETag OneSettings versioning value.
• ExitCode Indicates how users exited the dialog box.
• RebootVersion Version of DTE.
• UpdateId The ID of the update that is pending restart to finish installation.
• UpdateRevision The revision of the update that is pending restart to finish installation.
• UserResponseString The option that the user chose in this dialog box.

This event indicates that the Enhanced Engaged restart "restart failed" dialog box was displayed. The data collected with this event is used to help keep Windows secure and up to date.

The following fields are available:

• DeviceLocalTime The local time of the device sending the event.
• ETag OneSettings versioning value.
• ExitCode Indicates how users exited the dialog box.
• RebootVersion Version of DTE.
• UpdateId The ID of the update that is pending restart to finish installation.
• UpdateRevision The revision of the update that is pending restart to finish installation.
• UserResponseString The option that the user chose in this dialog box.

This event indicates that the Enhanced Engaged restart "restart imminent" dialog box was displayed. The data collected with this event is used to help keep Windows secure and up to date.

The following fields are available:

• DeviceLocalTime Time the dialog box was shown on the local device.
• ETag OneSettings versioning value.
• ExitCode Indicates how users exited the dialog box.
• RebootVersion Version of DTE.
• UpdateId The ID of the update that is pending restart to finish installation.
• UpdateRevision The revision of the update that is pending restart to finish installation.
• UserResponseString The option that user chose in this dialog box.

This event indicates that the second reminder dialog box was displayed for Enhanced Engaged restart. The data collected with this event is used to help keep Windows secure and up to date.

The following fields are available:

• DeviceLocalTime The time the dialog box was shown on the local device.
• ETag OneSettings versioning value.
• ExitCode Indicates how users exited the dialog box.
• RebootVersion Version of DTE.
• UpdateId The ID of the update that is pending restart to finish installation.
• UpdateRevision The revision of the update that is pending restart to finish installation.
• UserResponseString The option that the user chose in this dialog box.

This event indicates that the third reminder dialog box for Enhanced Engaged restart was displayed. The data collected with this event is used to help keep Windows secure and up to date.

The following fields are available:

• DeviceLocalTime The time the dialog box was shown on the local device.
• ETag OneSettings versioning value.
• ExitCode Indicates how users exited the dialog box.
• RebootVersion Version of DTE.
• UpdateId The ID of the update that is pending restart to finish installation.
• UpdateRevision The revision of the update that is pending restart to finish installation.
• UserResponseString The option that the user chose in this dialog box.

This event indicates that a device was unable to restart after an update. The data collected with this event is used to help keep Windows secure and up to date.

The following fields are available:

• errorCode The error code that was returned.
• wuDeviceid The Windows Update device GUID.

This event indicates that a restart required for installing updates was postponed. The data collected with this event is used to help keep Windows secure and up to date.

The following fields are available:

• filteredDeferReason Applicable filtered reasons why reboot was postponed (such as user active, or low battery).
• raisedDeferReason Indicates all potential reasons for postponing restart (such as user active, or low battery).
• wuDeviceid Unique device ID used by Windows Update.

This event sends launch data for a Windows Update scan to help keep Windows secure and up to date.

The following fields are available:

• deferReason The reason why the device could not check for updates.
• detectionBlockreason The reason detection did not complete.
• detectionDeferreason A log of deferral reasons for every update state.
• errorCode The error code returned for the current process.
• eventScenario End-to-end update session ID, or indicates the purpose of sending this event - whether because the software distribution just started installing content, or whether it was cancelled, succeeded, or failed.
• flightID The unique identifier for the flight (Windows Insider pre-release build) should be delivered to the device, if applicable.
• interactive Indicates whether the user initiated the session.
• revisionNumber The Update revision number.
• updateId The unique identifier of the Update.
• updateScenarioType Identifies the type of update session being performed.
• wuDeviceid The unique device ID used by Windows Update.

This event sends launch data for a Windows Update download to help keep Windows secure and up to date.

The following fields are available:

• deferReason Reason for download not completing.
• detectionDeferreason Reason for download not completing
• errorCode An error code represented as a hexadecimal value.
• eventScenario End-to-end update session ID.
• flightID The specific ID of the Windows Insider build the device is getting.
• interactive Indicates whether the session is user initiated.
• revisionNumber Update revision number.
• updateId Update ID.
• updateScenarioType The update session type.
• wuDeviceid Unique device ID used by Windows Update.

This event sends data on whether the update was applicable to the device. The data collected with this event is used to help keep Windows secure and up to date.

The following fields are available:

• EventPublishedTime Time when this event was generated.
• flightID The specific ID of the Windows Insider build.
• revisionNumber Update revision number.
• updateId Unique Windows Update ID.
• updateScenarioType Update session type.
• UpdateStatus Last status of update.
• wuDeviceid Unique Device ID.

This event sends data about an Orchestrator requesting a reboot from power management to help keep Windows secure and up to date.

The following fields are available:

• EventPublishedTime Time of the event.
• flightID Unique update ID
• interactive Indicates whether the reboot initiation stage of the update process was entered as a result of user action.
• rebootOutsideOfActiveHours Indicates whether the reboot was to occur outside of active hours.
• revisionNumber Revision number of the update.
• updateId Update ID.
• updateScenarioType The update session type.
• uxRebootstate Indicates the exact state of the user experience at the time the required reboot was initiated.
• wuDeviceid Unique device ID used by Windows Update.

This event sends launch data for a Windows Update install to help keep Windows secure and up to date.

The following fields are available:

• batteryLevel Current battery capacity in mWh or percentage left.
• deferReason Reason for install not completing.
• errorCode The error code represented by a hexadecimal value.
• eventScenario End-to-end update session ID.
• flightID The ID of the Windows Insider build the device is getting.
• flightUpdate Indicates whether the update is a Windows Insider build.
• ForcedRebootReminderSet A boolean value that indicates if a forced reboot will happen for updates.
• installCommitfailedtime The time it took for a reboot to happen but the upgrade failed to progress.
• installRebootinitiatetime The time it took for a reboot to be attempted.
• interactive Identifies if session is user initiated.
• minutesToCommit The time it took to install updates.
• rebootOutsideOfActiveHours Indicates whether a reboot is scheduled outside of active hours.
• revisionNumber Update revision number.
• updateId Update ID.
• updateScenarioType The update session type.
• uxRebootstate Indicates the exact state of the user experience at the time the required reboot was initiated to ensure the correct update process and experience is provided to keep Windows up to date.
• wuDeviceid Unique device ID used by Windows Update.

This event is sent if a device is identified as not having sufficient uptime to reliably process updates in order to keep secure. The data collected with this event is used to help keep Windows secure and up to date.

The following fields are available:

• lowUptimeMinHours Current setting for the minimum number of hours needed to not be considered low uptime.
• lowUptimeQueryDays Current setting for the number of recent days to check for uptime.
• uptimeMinutes Number of minutes of uptime measured.
• wuDeviceid Unique device ID for Windows Update.

This event returns data about scans initiated through settings UI, or background scans that are urgent; to help keep Windows secure and up to date.

The following fields are available:

• externalOneshotupdate The last time a task-triggered scan was completed.
• interactiveOneshotupdate The last time an interactive scan was completed.
• oldlastscanOneshotupdate The last time a scan completed successfully.
• wuDeviceid The Windows Update Device GUID (Globally-Unique ID).

This event sends data about lite stack devices (mobile, IOT, anything non-PC) immediately before data migration is launched to help keep Windows secure and up to date.

The following fields are available:

• batteryLevel Current battery capacity in megawatt-hours (mWh) or percentage left.
• bundleId The unique identifier associated with the specific content bundle.
• bundleRevisionnumber Identifies the revision number of the content bundle.
• errorCode The error code returned for the current phase.
• eventScenario State of update action.
• flightID The unique identifier for the flight (Windows Insider pre-release build) should be delivered to the device, if applicable.
• sessionType The Windows Update session type (Interactive or Background).
• wuDeviceid The unique device identifier used by Windows Update.

This event is sent when the options in power menu changed, usually due to an update pending reboot, or after a update is installed. The data collected with this event is used to help keep Windows secure and up to date.

The following fields are available:

• powermenuNewOptions The new options after the power menu changed.
• powermenuOldOptions The old options before the power menu changed.
• rebootPendingMinutes If the power menu changed because a reboot is pending due to a update, this indicates how long that reboot has been pending.
• wuDeviceid The device ID recorded by Windows Update if the power menu changed because a reboot is pending due to an update.

This event is generated before the shutdown and commit operations. The data collected with this event is used to help keep Windows secure and up to date.

The following fields are available:

• wuDeviceid The unique identifier of a specific device, used to identify how many devices are encountering success or a particular issue.

This event sends information about whether an update required a reboot and reasons for failure, to help keep Windows secure and up to date.

The following fields are available:

• batteryLevel Current battery capacity in mWh or percentage left.
• deferReason Reason for install not completing.
• EventPublishedTime The time that the reboot failure occurred.
• flightID Unique update ID.
• installRebootDeferreason Reason for reboot not occurring.
• rebootOutsideOfActiveHours Indicates whether a reboot was scheduled outside of active hours.
• RebootResults Hex code indicating failure reason. Typically, we expect this to be a specific USO generated hex code.
• revisionNumber Update revision number.
• updateId Update ID.
• updateScenarioType The update session type.
• uxRebootstate Indicates the exact state of the user experience at the time the required reboot was initiated to ensure the correct update process and experience is provided to keep Windows up to date.
• wuDeviceid Unique device ID used by Windows Update.

This event sends basic data about the version of upgrade settings applied to the system to help keep Windows secure and up to date.

The following fields are available:

• errorCode Hex code for the error message, to allow lookup of the specific error.
• settingsDownloadTime Timestamp of the last attempt to acquire settings.
• settingsETag Version identifier for the settings.
• wuDeviceid Unique device ID used by Windows Update.

This event sends data indicating that a reboot task is missing unexpectedly on a device and the task is restored because a reboot is still required, to help keep Windows secure and up to date.

The following fields are available:

• RebootTaskRestoredTime Time at which this reboot task was restored.
• revisionNumber Update revision number.
• updateId Update ID.
• wuDeviceid Device ID for the device on which the reboot is restored.

This event sends data about why a device is unable to reboot, to help keep Windows secure and up to date.

The following fields are available:

• eventScenario End-to-end update session ID.
• rebootOutsideOfActiveHours Indicates whether a reboot is scheduled outside of active hours.
• revisionNumber Update revision number.
• systemNeededReason List of apps or tasks that are preventing the system from restarting.
• updateId Update ID.
• updateScenarioType The update session type.
• uxRebootstate Indicates the exact state of the user experience at the time the required reboot was initiated to ensure the correct update process and experience is provided to keep Windows up to date.
• wuDeviceid Unique device ID used by Windows Update.

This event sends data on whether Update Management Policies were enabled on a device, to help keep Windows secure and up to date.

The following fields are available:

• configuredPoliciescount Number of policies on the device.
• policiesNamevaluesource Policy name and source of policy (group policy, MDM or flight).
• policyCacherefreshtime Time when policy cache was refreshed.
• updateInstalluxsetting Indicates whether a user has set policies via a user experience option.
• wuDeviceid Unique device ID used by Windows Update.

This event sends data about whether an update required a reboot to help keep Windows secure and up to date.

The following fields are available:

• flightID The specific ID of the Windows Insider build the device is getting.
• interactive Indicates whether the reboot initiation stage of the update process was entered as a result of user action.
• revisionNumber Update revision number.
• updateId Update ID.
• updateScenarioType The update session type.
• uxRebootstate Indicates the exact state of the user experience at the time the required reboot was initiated to ensure the correct update process and experience is provided to keep Windows up to date.
• wuDeviceid Unique device ID used by Windows Update.

This event sends information about an update that encountered problems and was not able to complete. The data collected with this event is used to help keep Windows secure and up to date.

The following fields are available:

• errorCode The error code encountered.
• wuDeviceid The ID of the device in which the error occurred.

This event sends data on whether the state of the update attempt, to help keep Windows secure and up to date.

The following fields are available:

• errorCode result showing success or failure of current update
• revisionNumber Unique revision number of the Update
• updateId Unique ID for Update
• updateState Progress within an update state
• wuDeviceid Unique ID for Device

This event represents the state of the USO service at start and completion. The data collected with this event is used to help keep Windows secure and up to date.

The following fields are available:

• activeSessionid A unique session GUID.
• eventScenario The state of the update action.
• interactive Is the USO session interactive?
• lastErrorcode The last error that was encountered.
• lastErrorstate The state of the update when the last error was encountered.
• sessionType A GUID that refers to the update session type.
• updateScenarioType A descriptive update session type.
• wuDeviceid The Windows Update device GUID.

This event sends data about the UpdateStackServicing check for updates, to help keep Windows up to date.

The following fields are available:

• BspVersion The version of the BSP.
• CallerApplicationName The name of the USS scheduled task. Example UssScheduled or UssBoot
• ClientVersion The version of the client.
• CommercializationOperator The name of the operator.
• DetectionVersion The string returned from the GetDetectionVersion export of the downloaded detection DLL.
• DeviceName The name of the device.
• EventInstanceID The USS session ID.
• EventScenario The scenario of the event. Example: Started, Failed, or Succeeded
• OemName The name of the manufacturer.
• ServiceGuid The GUID of the service.
• StatusCode The HRESULT code of the operation.
• WUDeviceID The Windows Update device ID.

This event sends information about the configuration of Enhanced Direct-to-Engaged (eDTE), which includes values for the timing of how eDTE will progress through each phase of the reboot. The data collected with this event is used to help keep Windows secure and up to date.

The following fields are available:

• AcceptAutoModeLimit The maximum number of days for a device to automatically enter Auto Reboot mode.
• AutoToAutoFailedLimit The maximum number of days for Auto Reboot mode to fail before a Reboot Failed dialog will be shown.
• DeviceLocalTime The date and time (based on the device date/time settings) the reboot mode changed.
• EngagedModeLimit The number of days to switch between DTE (Direct-to-Engaged) dialogs.
• EnterAutoModeLimit The maximum number of days a device can enter Auto Reboot mode.
• ETag The Entity Tag that represents the OneSettings version.
• IsForcedEnabled Identifies whether Forced Reboot mode is enabled for the device.
• IsUltimateForcedEnabled Identifies whether Ultimate Forced Reboot mode is enabled for the device.
• OldestUpdateLocalTime The date and time (based on the device date/time settings) this update’s reboot began pending.
• RebootUxState Identifies the reboot state: Engaged, Auto, Forced, UltimateForced.
• RebootVersion The version of the DTE (Direct-to-Engaged).
• SkipToAutoModeLimit The maximum number of days to switch to start while in Auto Reboot mode.
• UpdateId The ID of the update that is waiting for reboot to finish installation.
• UpdateRevision The revision of the update that is waiting for reboot to finish installation.

This event is sent when a security update has successfully completed. The data collected with this event is used to help keep Windows secure and up to date.

The following fields are available:

• UtcTime The Coordinated Universal Time that the restart was no longer needed.

This event sends basic information about scheduling an update-related reboot, to get security updates and to help keep Windows secure and up to date.

The following fields are available:

• activeHoursApplicable Indicates whether Active Hours applies on this device.
• forcedReboot True, if a reboot is forced on the device. Otherwise, this is False
• rebootArgument Argument for the reboot task. It also represents specific reboot related action.
• rebootOutsideOfActiveHours True, if a reboot is scheduled outside of active hours. False, otherwise.
• rebootScheduledByUser True, if a reboot is scheduled by user. False, if a reboot is scheduled automatically.
• rebootState Current state of the reboot.
• revisionNumber Revision number of the OS.
• scheduledRebootTime Time scheduled for the reboot.
• updateId Identifies which update is being scheduled.
• wuDeviceid The unique device ID used by Windows Update.

This event is sent when a toast notification is shown to the user about scheduling a device restart. The data collected with this event is used to help keep Windows secure and up to date.

The following fields are available:

• UtcTime The Coordinated Universal Time when the toast notification was shown.

This event sends basic information for scheduling a device restart to install security updates. The data collected with this event is used to help keep Windows secure and up to date.

The following fields are available:

• activeHoursApplicable Is the restart respecting Active Hours?
• forcedReboot True, if a reboot is forced on the device. Otherwise, this is False
• rebootArgument The arguments that are passed to the OS for the restarted.
• rebootOutsideOfActiveHours Was the restart scheduled outside of Active Hours?
• rebootScheduledByUser Was the restart scheduled by the user? If the value is false, the restart was scheduled by the device.
• rebootState The state of the restart.
• revisionNumber The revision number of the OS being updated.
• scheduledRebootTime Time of the scheduled reboot
• updateId The Windows Update device GUID.
• wuDeviceid The Windows Update device GUID.

This event is generated whenever a RUXIM user interaction campaign becomes complete. The data collected with this event is used to help keep Windows up to date and performing properly.

The following fields are available:

• InteractionCampaignID GUID identifying the interaction campaign that became complete.
• ResultId The final result of the interaction campaign.

This event is generated when the RUXIM Interaction Campaign Scheduler (RUXIMICS.EXE) finishes processing an interaction campaign. The data collected with this event is used to help keep Windows up to date and performing properly.

The following fields are available:

• ControlId String identifying the control (if any) that was selected by the user during presentation.
• hrInteractionHandler The error (if any) reported by the RUXIM Interaction Handler while processing the interaction campaign.
• hrScheduler The error (if any) encountered by RUXIM Interaction Campaign Scheduler itself while processing the interaction campaign.
• InteractionCampaignID The ID of the interaction campaign that was processed.
• ResultId The result of the evaluation/presentation.
• WasCompleted True if the interaction campaign is complete.
• WasPresented True if the Interaction Handler displayed the interaction campaign to the user.

This event is generated when the RUXIM Interaction Campaign Scheduler (RUXIMICS) exits. The data collected with this event is used to help keep Windows up to date and performing properly.

This event is generated when the RUXIM Interaction Campaign Scheduler (RUXIMICS.EXE) is launched. The data collected with this event is used to help keep Windows up to date and performing properly.

The following fields are available:

• CommandLine The command line used to launch RUXIMICS.

This event is sent when RUXIM completes checking with OneSettings to retrieve any UX interaction campaigns that may need to be displayed. The data collected with this event is used to help keep Windows up to date.

The following fields are available:

• hrInitialize Error, if any, that occurred while initializing OneSettings.
• hrQuery Error, if any, that occurred while retrieving UX interaction campaign data from OneSettings.

This event is sent when RUXIM begins checking with OneSettings to retrieve any UX interaction campaigns that may need to be displayed. The data collected with this event is used to help keep Windows up to date.

This event is generated when the RUXIM Interaction Handler finishes evaluating, and possibly presenting an interaction campaign. The data collected with this event is used to help keep Windows up to date and performing properly.

The following fields are available:

• hrLocal The error (if any) encountered by RUXIM Interaction Handler during evaluation and presentation.
• hrPresentation The error (if any) reported by RUXIM Presentation Handler during presentation.
• InteractionCampaignID GUID; the user interaction campaign processed by RUXIM Interaction Handler.
• ResultId The result generated by the evaluation and presentation.
• WasCompleted True if the user interaction campaign is complete.
• WasPresented True if the user interaction campaign is displayed to the user.

This event is generated when the RUXIM Interaction Handler (RUXIMIH.EXE) exits. The data collected with this event is used to help keep Windows up to date and performing properly.

The following fields are available:

• InteractionCampaignID GUID identifying the interaction campaign that RUXIMIH processed.

This event is generated when the RUXIM Interaction Handler (RUXIMIH.EXE) is launched. The data collected with this event is used to help keep Windows up to date and performing properly.

The following fields are available:

• CommandLine The command line used to launch RUXIMIH.
• InteractionCampaignID GUID identifying the user interaction campaign that the Interaction Handler will process.

This event is generated whenever the RUXIM Evaluator DLL performs an evaluation. The data collected with this event is used to help keep Windows up to date and performing properly.

The following fields are available:

• HRESULT Error, if any, that occurred during evaluation. (Note that if errors encountered during individual checks do not affect the overall result of the evaluation, those errors will be reported in NodeEvaluationData, but this HRESULT will still be zero.)
• Id GUID passed in by the caller to identify the evaluation.
• NodeEvaluationData Structure showing the results of individual checks that occurred during the overall evaluation.
• Result The overall result generated by the evaluation.

This event sends data specific to the CleanupSafeOsImages mitigation used for OS Updates. The data collected with this event is used to help keep Windows secure and up to date.

The following fields are available:

• ClientId The client ID used by Windows Update.
• FlightId The ID of each Windows Insider build the device received.
• InstanceId A unique device ID that identifies each update instance.
• MitigationScenario The update scenario in which the mitigation was executed.
• MountedImageCount The number of mounted images.
• MountedImageMatches The number of mounted image matches.
• MountedImagesFailed The number of mounted images that could not be removed.
• MountedImagesRemoved The number of mounted images that were successfully removed.
• MountedImagesSkipped The number of mounted images that were not found.
• RelatedCV The correlation vector value generated from the latest USO scan.
• Result HResult of this operation.
• ScenarioId ID indicating the mitigation scenario.
• ScenarioSupported Indicates whether the scenario was supported.
• SessionId Unique value for each update attempt.
• UpdateId Unique ID for each Windows Update.
• WuId Unique ID for the Windows Update client.

This event sends data specific to the FixupEditionId mitigation used for OS Updates. The data collected with this event is used to help keep Windows secure and up to date.

This event is sent when the Update Reserve Manager commits a hard reserve adjustment that was pending. The data collected with this event is used to help keep Windows secure and up to date.

This event returns data about the Update Reserve Manager, including whether it’s been initialized. The data collected with this event is used to help keep Windows secure and up to date.

This event is sent when the Update Reserve Manager removes a pending hard reserve adjustment. The data collected with this event is used to help keep Windows secure and up to date.

This event is sent when the Update Reserve Manager needs to adjust the size of the hard reserve after the option content is installed. The data collected with this event is used to help keep Windows secure and up to date.

This event signals the completion of the setup process. It happens only once during the first logon.

This event indicates whether the system detected an activation error in the app.

The following fields are available:

• ActivationUri Activation URI (Uniform Resource Identifier) used in the attempt to activate the app.
• AppId The Xbox LIVE Title ID.
• AppUserModelId The AUMID (Application User Model ID) of the app to activate.
• Result The HResult error.
• UserId The Xbox LIVE User ID (XUID).

This event is triggered whenever the current app state is changed by: launch, switch, terminate, snap, etc.

The following fields are available:

• AppActionId The ID of the application action.
• AppCurrentVisibilityState The ID of the current application visibility state.
• AppId The Xbox LIVE Title ID of the app.
• AppPackageFullName The full name of the application package.
• AppPreviousVisibilityState The ID of the previous application visibility state.
• AppSessionId The application session ID.
• AppType The type ID of the application (AppType_NotKnown, AppType_Era, AppType_Sra, AppType_Uwa).
• BCACode The BCA (Burst Cutting Area) mark code of the optical disc used to launch the application.
• DurationMs The amount of time (in milliseconds) since the last application state transition.
• IsTrialLicense This boolean value is TRUE if the application is on a trial license.
• LicenseType The type of licensed used to authorize the app (0 - Unknown, 1 - User, 2 - Subscription, 3 - Offline, 4 - Disc).
• LicenseXuid If the license type is 1 (User), this field contains the XUID (Xbox User ID) of the registered owner of the license.
• ProductGuid The Xbox product GUID (Globally-Unique ID) of the application.
• UserId The XUID (Xbox User ID) of the current user.

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