WUA Success and Error Codes

The Windows Update Agent (WUA) API can return the following success or error codes for non-network operations:

Constant/value	Description
WU_S_SERVICE_STOP 0x00240001	WUA was stopped successfully.
WU_S_SELFUPDATE 0x00240002	WUA updated itself.
WU_S_UPDATE_ERROR 0x00240003	The operation completed successfully but errors occurred applying the updates.
WU_S_MARKED_FOR_DISCONNECT 0x00240004	A callback was marked to be disconnected later because the request to disconnect the operation came while a callback was executing.
WU_S_REBOOT_REQUIRED 0x00240005	The system must be restarted to complete installation of the update.
WU_S_ALREADY_INSTALLED 0x00240006	The update to be installed is already installed on the system.
WU_S_ALREADY_UNINSTALLED 0x00240007	The update to be removed is not installed on the system.
WU_S_ALREADY_DOWNLOADED 0x00240008	The update to be downloaded has already been downloaded.
WU_S_UH_INSTALLSTILLPENDING 0x00242015	The installation operation for the update is still in progress.
WU_E_NO_SERVICE 0x80240001	WUA was unable to provide the service.
WU_E_MAX_CAPACITY_REACHED 0x80240002	The maximum capacity of the service was exceeded.
WU_E_UNKNOWN_ID 0x80240003	WUA cannot find an ID.
WU_E_NOT_INITIALIZED 0x80240004	The object could not be initialized.
WU_E_RANGEOVERLAP 0x80240005	The update handler requested a byte range overlapping a previously requested range.
WU_E_TOOMANYRANGES 0x80240006	The requested number of byte ranges exceeds the maximum number (2³¹ - 1).
WU_E_INVALIDINDEX 0x80240007	The index to a collection was invalid.
WU_E_ITEMNOTFOUND 0x80240008	The key for the item queried could not be found.
WU_E_OPERATIONINPROGRESS 0x80240009	Another conflicting operation was in progress. Some operations such as installation cannot be performed twice simultaneously.
WU_E_COULDNOTCANCEL 0x8024000A	Cancellation of the operation was not allowed.
WU_E_CALL_CANCELLED 0x8024000B	Operation was cancelled.
WU_E_NOOP 0x8024000C	No operation was required.
WU_E_XML_MISSINGDATA 0x8024000D	WUA could not find required information in the update's XML data.
WU_E_XML_INVALID 0x8024000E	WUA found invalid information in the update's XML data.
WU_E_CYCLE_DETECTED 0x8024000F	Circular update relationships were detected in the metadata.
WU_E_TOO_DEEP_RELATION 0x80240010	Update relationships too deep to evaluate were evaluated.
WU_E_INVALID_RELATIONSHIP 0x80240011	An invalid update relationship was detected.
WU_E_REG_VALUE_INVALID 0x80240012	An invalid registry value was read.
WU_E_DUPLICATE_ITEM 0x80240013	Operation tried to add a duplicate item to a list.
WU_E_INVALID_INSTALL_REQUESTED 0x80240014	Updates that are requested for install are not installable by the caller.
WU_E_INSTALL_NOT_ALLOWED 0x80240016	Operation tried to install while another installation was in progress or the system was pending a mandatory restart.
WU_E_NOT_APPLICABLE 0x80240017	Operation was not performed because there are no applicable updates.
WU_E_NO_USERTOKEN 0x80240018	Operation failed because a required user token is missing.
WU_E_EXCLUSIVE_INSTALL_CONFLICT 0x80240019	An exclusive update can't be installed with other updates at the same time.
WU_E_POLICY_NOT_SET 0x8024001A	A policy value was not set.
WU_E_SELFUPDATE_IN_PROGRESS 0x8024001B	The operation could not be performed because the Windows Update Agent is self-updating.
WU_E_INVALID_UPDATE 0x8024001D	An update contains invalid metadata.
WU_E_SERVICE_STOP 0x8024001E	Operation did not complete because the service or system was being shut down.
WU_E_NO_CONNECTION 0x8024001F	Operation did not complete because the network connection was unavailable.
WU_E_NO_INTERACTIVE_USER 0x80240020	Operation did not complete because there is no logged-on interactive user.
WU_E_TIME_OUT 0x80240021	Operation did not complete because it timed out.
WU_E_ALL_UPDATES_FAILED 0x80240022	Operation failed for all the updates.
WU_E_EULAS_DECLINED 0x80240023	The license terms for all updates were declined.
WU_E_NO_UPDATE 0x80240024	There are no updates.
WU_E_USER_ACCESS_DISABLED 0x80240025	Group Policy settings prevented access to Windows Update.
WU_E_INVALID_UPDATE_TYPE 0x80240026	The type of update is invalid.
WU_E_URL_TOO_LONG 0x80240027	The URL exceeded the maximum length.
WU_E_UNINSTALL_NOT_ALLOWED 0x80240028	The update could not be uninstalled because the request did not originate from a Windows Server Update Services (WSUS) server.
WU_E_INVALID_PRODUCT_LICENSE 0x80240029	Search may have missed some updates before there is an unlicensed application on the system.
WU_E_MISSING_HANDLER 0x8024002A	A component required to detect applicable updates was missing.
WU_E_LEGACYSERVER 0x8024002B	An operation did not complete because it requires a newer version of server.
WU_E_BIN_SOURCE_ABSENT 0x8024002C	A delta-compressed update could not be installed because it required the source.
WU_E_SOURCE_ABSENT 0x8024002D	A full-file update could not be installed because it required the source.
WU_E_WU_DISABLED 0x8024002E	Access to an unmanaged server is not allowed.
WU_E_CALL_CANCELLED_BY_POLICY 0x8024002F	Operation did not complete because the DisableWindowsUpdateAccess policy was set in the registry.
WU_E_INVALID_PROXY_SERVER 0x80240030	The format of the proxy list was invalid.
WU_E_INVALID_FILE 0x80240031	The file is in the wrong format.
WU_E_INVALID_CRITERIA 0x80240032	The search criteria string was invalid.
WU_E_EULA_UNAVAILABLE 0x80240033	License terms could not be downloaded.
WU_E_DOWNLOAD_FAILED 0x80240034	Update failed to download.
WU_E_UPDATE_NOT_PROCESSED 0x80240035	The update was not processed.
WU_E_INVALID_OPERATION 0x80240036	The object's current state did not allow the operation.
WU_E_NOT_SUPPORTED 0x80240037	The functionality for the operation is not supported.
WU_E_TOO_MANY_RESYNC 0x80240039	Agent is asked by server to resync too many times.
WU_E_NO_SERVER_CORE_SUPPORT 0x80240040	The WUA API method does not run on the server core installation.
WU_E_SYSPREP_IN_PROGRESS 0x80240041	Service is not available while sysprep is running.
WU_E_UNKNOWN_SERVICE 0x80240042	The update service is no longer registered with automatic updates.
WU_E_NO_UI_SUPPORT 0x80240043	No support for the WUA user interface.
WU_E_PER_MACHINE_UPDATE_ACCESS_DENIED 0x80240044	Only administrators can perform this operation on per-computer updates.
WU_E_UNSUPPORTED_SEARCHSCOPE 0x80240045	A search was attempted with a scope that is not currently supported for this type of search.
WU_E_BAD_FILE_URL 0x80240046	The URL does not point to a file.
WU_E_NOTSUPPORTED 0x80240047	The operation requested is not supported.
WU_E_INVALID_NOTIFICATION_INFO 0x80240048	The featured update notification info returned by the server is invalid.
WU_E_OUTOFRANGE 0x80240049	The data is out of range.
WU_E_SETUP_IN_PROGRESS 0x8024004A	WUA operations are not available while operating system setup is running.
WU_E_UNEXPECTED 0x80240FFF	An operation failed due to reasons not covered by another error code.

Requirements

Requirement	Value
Header	Wuerror.h