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Windows Update Agent (WUA) uses the enumerations that are listed in the following table to represent the status of operations.
| Enumeration | Description |
|---|---|
| AddServiceFlag | Defines the possible ways in which the service registration can be processed. |
| AutoDownloadMode | Defines the logic that is used to determine whether Automatic Updates will automatically download an update once it is determined to be applicable for the computer. |
| AutomaticUpdatesNotificationLevel | Defines the possible ways in which elevated users are notified about Automatic Updates events. |
| AutomaticUpdatesPermissionType | Defines the possible ways to set the IAutomaticUpdatesSettings::NotificationLevel property or the or the IAutomaticUpdatesSettings2::IncludeRecommendedUpdates property. |
| AutomaticUpdatesScheduledInstallationDay | Defines the days of the week when Automatic Updates installs or uninstalls updates. |
| AutomaticUpdatesUserType | Describes the type of user. |
| AutoSelectionMode | Defines the logic used to determine whether a particular update will be automatically selected when the user views the available updates in the Windows Update user interface. |
| DeploymentAction | Defines the action for which an update is explicitly deployed. |
| DownloadPhase | Defines the progress of the download of a current update that is returned by the IDownloadProgress::CurrentUpdateDownloadPhase property. |
| DownloadPriority | Defines the possible priorities for a download operation. |
| DownloadType | Specifies the type of update download to perform. |
| InstallationImpact | Defines the possible levels of impact that can be caused by installing or uninstalling an update. |
| InstallationRebootBehavior | Defines the possible restart behaviors for an update. |
| OperationResultCode | Defines the possible results of a download, install, uninstall, or verification operation on an update. |
| SearchScope | Specifies the variety of updates that should be returned by the search: per-machine updates, per-user updates, or both. Per-user updates are updates designed to affect only a single user’s environment. For more information, see IUpdate4::PerUser. |
| ServerSelection | Defines the update services that Windows Update can operate against. . |
| UpdateEndpointAuthTokenType | Defines the type of tokens that can be used for authenticating with an endpoint. |
| UpdateEndpointType | Defines the type of endpoints that can be used to connect to a service. |
| UpdateExceptionContext | Defines the context in which an IUpdateException object can be provided. |
| UpdateLockdownOption | Defines the functionality that the Windows Update Agent (WUA) object can access from Windows Update. |
| UpdateOperation | Defines the operations that can be attempted on an update. |
| UpdateServiceOption | Defines the options to remove the service registration for a scan package service. |
| UpdateServiceRegistrationState | Defines the possible states for an update service. |
| UpdateType | Indicates whether an update is a software update or a driver update. |