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InstallationStatus Enumeration

Defines constants for the possible installation states of an update on the client computer.


Namespace: Microsoft.UpdateServices.Administration
Assembly: Microsoft.UpdateServices.Administration (in Microsoft.UpdateServices.Administration.dll)
[ComVisibleAttribute(true)] 
public enum InstallationStatus
/** @attribute ComVisibleAttribute(true) */ 
public enum InstallationStatus
ComVisibleAttribute(true) 
public enum InstallationStatus
Member nameDescription
DetectionCompleteCompleted scanning the client computer for applicable updates.
DetectionFailedScanning of the client computer for applicable updates failed.
DownloadCanceledDownloading of the update to the client computer was canceled.
DownloadFailedDownloading of the update to the client computer failed.
DownloadSucceededDownloading of the update to the client computer succeeded.
FailedFailed to install the update on the client computer.
InstallableThe update is applicable to the client computer, but the update is not installed.
InstalledThe update is applicable to the client computer and is currently installed.
NotApplicableThe update is not applicable to the client computer.
StartedStarted the installation or removal of an update on the client computer.
SucceededSuccessfully installed the update on the client computer.
SupersededThe update is applicable to the client computer, but the update is superseded by another update that is currently installed.
UninstallationFailedFailed to remove the update from the client computer.
UninstallationSucceededSuccessfully removed the update from the client computer.
UnknownThe installation status is unknown. The client may not have synchronized with the WSUS server.

The client sends the following status codes to indicate the result of a scan (which occurs when the update is downloaded):

  • Installable

  • Installed

  • Superseded

  • NotApplicable

The client sends the following status codes when it initiates the detection logic (the client asks the WSUS server for a list of updates and then scans itself to determine which updates apply). The status codes are not associated with an update.

  • DetectionComplete

  • DetectionFailed


Development Platforms

Target Platforms

Windows Server 2008, Windows Server 2003, Windows Server 2008 R2
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