Windows Update error codes by component

Applies to: Windows 10

This section lists the error codes for Microsoft Windows Update.

Automatic Update Errors

Error code Message Description
0x80243FFF WU_E_AUCLIENT_UNEXPECTED There was a user interface error not covered by another WU_E_AUCLIENT_* error code.
0x8024A000 WU_E_AU_NOSERVICE Automatic Updates was unable to service incoming requests. 
0x8024A002 WU_E_AU_NONLEGACYSERVER The old version of the Automatic Updates client has stopped because the WSUS server has been upgraded.
0x8024A003 WU_E_AU_LEGACYCLIENTDISABLED  The old version of the Automatic Updates client was disabled.
0x8024A004 WU_E_AU_PAUSED Automatic Updates was unable to process incoming requests because it was paused.
0x8024A005 WU_E_AU_NO_REGISTERED_SERVICE  No unmanaged service is registered with AU.
0x8024AFFF WU_E_AU_UNEXPECTED  An Automatic Updates error not covered by another WU_E_AU * code.

Windows Update UI errors

Error code Message Description
0x80243001 WU_E_INSTALLATION_RESULTS_UNKNOWN_VERSION The results of download and installation could not be read from the registry due to an unrecognized data format version.
0x80243002 WU_E_INSTALLATION_RESULTS_INVALID_DATA The results of download and installation could not be read from the registry due to an invalid data format.
0x80243003 WU_E_INSTALLATION_RESULTS_NOT_FOUND The results of download and installation are not available; the operation may have failed to start.
0x80243004  WU_E_TRAYICON_FAILURE  A failure occurred when trying to create an icon in the taskbar notification area.
0x80243FFD  WU_E_NON_UI_MODE  Unable to show UI when in non-UI mode; WU client UI modules may not be installed. 
0x80243FFE  WU_E_WUCLTUI_UNSUPPORTED_VERSION  Unsupported version of WU client UI exported functions. 
0x80243FFF  WU_E_AUCLIENT_UNEXPECTED  There was a user interface error not covered by another WU_E_AUCLIENT_* error code. 

Inventory errors

Error code Message Description
0x80249001  WU_E_INVENTORY_PARSEFAILED  Parsing of the rule file failed. 
0x80249002  WU_E_INVENTORY_GET_INVENTORY_TYPE_FAILED  Failed to get the requested inventory type from the server. 
0x80249003  WU_E_INVENTORY_RESULT_UPLOAD_FAILED  Failed to upload inventory result to the server. 
0x80249004  WU_E_INVENTORY_UNEXPECTED  There was an inventory error not covered by another error code.
0x80249005  WU_E_INVENTORY_WMI_ERROR  A WMI error occurred when enumerating the instances for a particular class. 

Expression evaluator errors

Error code Message Description
0x8024E001  WU_E_EE_UNKNOWN_EXPRESSION  An expression evaluator operation could not be completed because an expression was unrecognized.
0x8024E002  WU_E_EE_INVALID_EXPRESSION  An expression evaluator operation could not be completed because an expression was invalid. 
0x8024E003  WU_E_EE_MISSING_METADATA  An expression evaluator operation could not be completed because an expression contains an incorrect number of metadata nodes. 
0x8024E004  WU_E_EE_INVALID_VERSION  An expression evaluator operation could not be completed because the version of the serialized expression data is invalid. 
 0x8024E005  WU_E_EE_NOT_INITIALIZED  The expression evaluator could not be initialized.
 0x8024E006  WU_E_EE_INVALID_ATTRIBUTEDATA  An expression evaluator operation could not be completed because there was an invalid attribute.
 0x8024E007  WU_E_EE_CLUSTER_ERROR  An expression evaluator operation could not be completed because the cluster state of the computer could not be determined. 
 0x8024EFFF  WU_E_EE_UNEXPECTED  There was an expression evaluator error not covered by another WU_E_EE_* error code. 

Reporter errors

Error code Message Description
 0x80247001  WU_E_OL_INVALID_SCANFILE  An operation could not be completed because the scan package was invalid.
0x80247002  WU_E_OL_NEWCLIENT_REQUIRED  An operation could not be completed because the scan package requires a greater version of the Windows Update Agent.
 0x80247FFF  WU_E_OL_UNEXPECTED  Search using the scan package failed. 
 0x8024F001  WU_E_REPORTER_EVENTCACHECORRUPT  The event cache file was defective. 
 0x8024F002  WU_E_REPORTER_EVENTNAMESPACEPARSEFAILED  The XML in the event namespace descriptor could not be parsed.
 0x8024F003  WU_E_INVALID_EVENT  The XML in the event namespace descriptor could not be parsed.
 0x8024F004  WU_E_SERVER_BUSY  The server rejected an event because the server was too busy.
 0x8024FFFF  WU_E_REPORTER_UNEXPECTED  There was a reporter error not covered by another error code. 

Redirector errors

The components that download the Wuredir.cab file and then parse the Wuredir.cab file generate the following errors.

Error code Message Description
 0x80245001  WU_E_REDIRECTOR_LOAD_XML  The redirector XML document could not be loaded into the DOM class. 
 0x80245002  WU_E_REDIRECTOR_S_FALSE  The redirector XML document is missing some required information. 
 0x80245003  WU_E_REDIRECTOR_ID_SMALLER  The redirectorId in the downloaded redirector cab is less than in the cached cab. 
 0x80245FFF  WU_E_REDIRECTOR_UNEXPECTED  The redirector failed for reasons not covered by another WU_E_REDIRECTOR_* error code. 

Protocol Talker errors

The following errors map to SOAPCLIENT_ERRORs through the Atlsoap.h file. These errors are obtained when the CClientWebService object calls the GetClientError() method.

Error code Message Description
 0x80244000  WU_E_PT_SOAPCLIENT_BASE  WU_E_PT_SOAPCLIENT_* error codes map to the SOAPCLIENT_ERROR enum of the ATL Server Library.
0x80244001  WU_E_PT_SOAPCLIENT_INITIALIZE  Same as SOAPCLIENT_INITIALIZE_ERROR - initialization of the SOAP client failed possibly because of an MSXML installation failure.
 0x80244002  WU_E_PT_SOAPCLIENT_OUTOFMEMORY  Same as SOAPCLIENT_OUTOFMEMORY - SOAP client failed because it ran out of memory. 
 0x80244003  WU_E_PT_SOAPCLIENT_GENERATE  Same as SOAPCLIENT_GENERATE_ERROR - SOAP client failed to generate the request.
 0x80244004  WU_E_PT_SOAPCLIENT_CONNECT  Same as SOAPCLIENT_CONNECT_ERROR - SOAP client failed to connect to the server. 
 0x80244005  WU_E_PT_SOAPCLIENT_SEND  Same as SOAPCLIENT_SEND_ERROR - SOAP client failed to send a message for reasons of WU_E_WINHTTP_* error codes.
 0x80244006  WU_E_PT_SOAPCLIENT_SERVER  Same as SOAPCLIENT_SERVER_ERROR - SOAP client failed because there was a server error. 
 0x80244007  WU_E_PT_SOAPCLIENT_SOAPFAULT  Same as SOAPCLIENT_SOAPFAULT - SOAP client failed because there was a SOAP fault for reasons of WU_E_PT_SOAP_* error codes.
 0x80244008  WU_E_PT_SOAPCLIENT_PARSEFAULT  Same as SOAPCLIENT_PARSEFAULT_ERROR - SOAP client failed to parse a SOAP fault.
 0x80244009  WU_E_PT_SOAPCLIENT_READ  Same as SOAPCLIENT_READ_ERROR - SOAP client failed while reading the response from the server.
 0x8024400A  WU_E_PT_SOAPCLIENT_PARSE  Same as SOAPCLIENT_PARSE_ERROR - SOAP client failed to parse the response from the server. 

Other Protocol Talker errors

The following errors map to SOAP_ERROR_CODEs from the Atlsoap.h file. These errors are obtained from the m_fault.m_soapErrCode member of the CClientWebService object when GetClientError() returns SOAPCLIENT_SOAPFAULT.

Error code Message Description
 0x8024400B  WU_E_PT_SOAP_VERSION  Same as SOAP_E_VERSION_MISMATCH - SOAP client found an unrecognizable namespace for the SOAP envelope.
 0x8024400C  WU_E_PT_SOAP_MUST_UNDERSTAND  Same as SOAP_E_MUST_UNDERSTAND - SOAP client was unable to understand a header. 
 0x8024400D  WU_E_PT_SOAP_CLIENT  Same as SOAP_E_CLIENT - SOAP client found the message was malformed; fix before resending. 
 0x8024400E  WU_E_PT_SOAP_SERVER  Same as SOAP_E_SERVER - The SOAP message could not be processed due to a server error; resend later. 
 0x8024400F  WU_E_PT_WMI_ERROR  There was an unspecified Windows Management Instrumentation (WMI) error.
 0x80244010  WU_E_PT_EXCEEDED_MAX_SERVER_TRIPS  The number of round trips to the server exceeded the maximum limit. 
 0x80244011  WU_E_PT_SUS_SERVER_NOT_SET  WUServer policy value is missing in the registry. 
 0x80244012  WU_E_PT_DOUBLE_INITIALIZATION  Initialization failed because the object was already initialized. 
 0x80244013  WU_E_PT_INVALID_COMPUTER_NAME  The computer name could not be determined. 
 0x80244015  WU_E_PT_REFRESH_CACHE_REQUIRED  The reply from the server indicates that the server was changed or the cookie was invalid; refresh the state of the internal cache and retry.
 0x80244016  WU_E_PT_HTTP_STATUS_BAD_REQUEST  Same as HTTP status 400 - the server could not process the request due to invalid syntax. 
 0x80244017  WU_E_PT_HTTP_STATUS_DENIED  Same as HTTP status 401 - the requested resource requires user authentication. 
 0x80244018  WU_E_PT_HTTP_STATUS_FORBIDDEN  Same as HTTP status 403 - server understood the request but declined to fulfill it.
 0x80244019  WU_E_PT_HTTP_STATUS_NOT_FOUND  Same as HTTP status 404 - the server cannot find the requested URI (Uniform Resource Identifier). 
 0x8024401A  WU_E_PT_HTTP_STATUS_BAD_METHOD  Same as HTTP status 405 - the HTTP method is not allowed. 
 0x8024401B  WU_E_PT_HTTP_STATUS_PROXY_AUTH_REQ  Same as HTTP status 407 - proxy authentication is required. 
 0x8024401C  WU_E_PT_HTTP_STATUS_REQUEST_TIMEOUT  Same as HTTP status 408 - the server timed out waiting for the request. 
 0x8024401D  WU_E_PT_HTTP_STATUS_CONFLICT  Same as HTTP status 409 - the request was not completed due to a conflict with the current state of the resource. 
 0x8024401E  WU_E_PT_HTTP_STATUS_GONE  Same as HTTP status 410 - requested resource is no longer available at the server.
 0x8024401F  WU_E_PT_HTTP_STATUS_SERVER_ERROR  Same as HTTP status 500 - an error internal to the server prevented fulfilling the request. 
 0x80244020  WU_E_PT_HTTP_STATUS_NOT_SUPPORTED  Same as HTTP status 500 - server does not support the functionality required to fulfill the request. 
 0x80244021  WU_E_PT_HTTP_STATUS_BAD_GATEWAY Same as HTTP status 502 - the server while acting as a gateway or a proxy received an invalid response from the upstream server it accessed in attempting to fulfil the request.
 0x80244022  WU_E_PT_HTTP_STATUS_SERVICE_UNAVAIL  Same as HTTP status 503 - the service is temporarily overloaded. 
 0x80244023  WU_E_PT_HTTP_STATUS_GATEWAY_TIMEOUT  Same as HTTP status 503 - the request was timed out waiting for a gateway. 
 0x80244024  WU_E_PT_HTTP_STATUS_VERSION_NOT_SUP  Same as HTTP status 505 - the server does not support the HTTP protocol version used for the request. 
 0x80244025  WU_E_PT_FILE_LOCATIONS_CHANGED  Operation failed due to a changed file location; refresh internal state and resend.
 0x80244026  WU_E_PT_REGISTRATION_NOT_SUPPORTED  Operation failed because Windows Update Agent does not support registration with a non-WSUS server. 
 0x80244027  WU_E_PT_NO_AUTH_PLUGINS_REQUESTED  The server returned an empty authentication information list. 
 0x80244028  WU_E_PT_NO_AUTH_COOKIES_CREATED  Windows Update Agent was unable to create any valid authentication cookies. 
 0x80244029  WU_E_PT_INVALID_CONFIG_PROP  A configuration property value was wrong. 
 0x8024402A  WU_E_PT_CONFIG_PROP_MISSING  A configuration property value was missing. 
 0x8024402B  WU_E_PT_HTTP_STATUS_NOT_MAPPED  The HTTP request could not be completed and the reason did not correspond to any of the WU_E_PT_HTTP_* error codes. 
 0x8024402C  WU_E_PT_WINHTTP_NAME_NOT_RESOLVED  Same as ERROR_WINHTTP_NAME_NOT_RESOLVED - the proxy server or target server name cannot be resolved. 
 0x8024402F  WU_E_PT_ECP_SUCCEEDED_WITH_ERRORS  External cab file processing completed with some errors.
 0x80244030  WU_E_PT_ECP_INIT_FAILED  The external cab processor initialization did not complete. 
 0x80244031  WU_E_PT_ECP_INVALID_FILE_FORMAT  The format of a metadata file was invalid. 
 0x80244032  WU_E_PT_ECP_INVALID_METADATA  External cab processor found invalid metadata. 
 0x80244033  WU_E_PT_ECP_FAILURE_TO_EXTRACT_DIGEST  The file digest could not be extracted from an external cab file. 
 0x80244034  WU_E_PT_ECP_FAILURE_TO_DECOMPRESS_CAB_FILE  An external cab file could not be decompressed. 
 0x80244035  WU_E_PT_ECP_FILE_LOCATION_ERROR  External cab processor was unable to get file locations. 
 0x80244FFF  WU_E_PT_UNEXPECTED  A communication error not covered by another WU_E_PT_* error code. 
 0x8024502D  WU_E_PT_SAME_REDIR_ID  Windows Update Agent failed to download a redirector cabinet file with a new redirectorId value from the server during the recovery. 
 0x8024502E  WU_E_PT_NO_MANAGED_RECOVER  A redirector recovery action did not complete because the server is managed. 

Download Manager errors

Error code Message Description
 0x80246001  WU_E_DM_URLNOTAVAILABLE  A download manager operation could not be completed because the requested file does not have a URL. 
 0x80246002  WU_E_DM_INCORRECTFILEHASH  A download manager operation could not be completed because the file digest was not recognized. 
 0x80246003  WU_E_DM_UNKNOWNALGORITHM  A download manager operation could not be completed because the file metadata requested an unrecognized hash algorithm. 
 0x80246004  WU_E_DM_NEEDDOWNLOADREQUEST  An operation could not be completed because a download request is required from the download handler. 
 0x80246005  WU_E_DM_NONETWORK  A download manager operation could not be completed because the network connection was unavailable. 
 0x80246006  WU_E_DM_WRONGBITSVERSION  A download manager operation could not be completed because the version of Background Intelligent Transfer Service (BITS) is incompatible.
 0x80246007  WU_E_DM_NOTDOWNLOADED  The update has not been downloaded. 
 0x80246008  WU_E_DM_FAILTOCONNECTTOBITS  A download manager operation failed because the download manager was unable to connect the Background Intelligent Transfer Service (BITS).
 0x80246009 WU_E_DM_BITSTRANSFERERROR  A download manager operation failed because there was an unspecified Background Intelligent Transfer Service (BITS) transfer error. 
 0x8024600A  WU_E_DM_DOWNLOADLOCATIONCHANGED  A download must be restarted because the location of the source of the download has changed.
 0x8024600B  WU_E_DM_CONTENTCHANGED  A download must be restarted because the update content changed in a new revision. 
 0x80246FFF  WU_E_DM_UNEXPECTED  There was a download manager error not covered by another WU_E_DM_* error code. 

Update Handler errors

Error code Message Description
 0x80242000  WU_E_UH_REMOTEUNAVAILABLE 9 A request for a remote update handler could not be completed because no remote process is available. 
 0x80242001  WU_E_UH_LOCALONLY  A request for a remote update handler could not be completed because the handler is local only. 
 0x80242002  WU_E_UH_UNKNOWNHANDLER  A request for an update handler could not be completed because the handler could not be recognized. 
 0x80242003  WU_E_UH_REMOTEALREADYACTIVE  A remote update handler could not be created because one already exists. 
 0x80242004  WU_E_UH_DOESNOTSUPPORTACTION  A request for the handler to install (uninstall) an update could not be completed because the update does not support install (uninstall).
 0x80242005  WU_E_UH_WRONGHANDLER  An operation did not complete because the wrong handler was specified. 
 0x80242006  WU_E_UH_INVALIDMETADATA  A handler operation could not be completed because the update contains invalid metadata. 
 0x80242007  WU_E_UH_INSTALLERHUNG  An operation could not be completed because the installer exceeded the time limit. 
 0x80242008  WU_E_UH_OPERATIONCANCELLED  An operation being done by the update handler was cancelled. 
 0x80242009  WU_E_UH_BADHANDLERXML  An operation could not be completed because the handler-specific metadata is invalid. 
0x8024200A  WU_E_UH_CANREQUIREINPUT  A request to the handler to install an update could not be completed because the update requires user input. 
 0x8024200B  WU_E_UH_INSTALLERFAILURE  The installer failed to install (uninstall) one or more updates. 
 0x8024200C  WU_E_UH_FALLBACKTOSELFCONTAINED  The update handler should download self-contained content rather than delta-compressed content for the update. 
 0x8024200D  WU_E_UH_NEEDANOTHERDOWNLOAD  The update handler did not install the update because it needs to be downloaded again. 
 0x8024200E  WU_E_UH_NOTIFYFAILURE  The update handler failed to send notification of the status of the install (uninstall) operation. 
 0x8024200F WU_E_UH_INCONSISTENT_FILE_NAMES  The file names contained in the update metadata and in the update package are inconsistent. 
 0x80242010  WU_E_UH_FALLBACKERROR  The update handler failed to fall back to the self-contained content. 
 0x80242011  WU_E_UH_TOOMANYDOWNLOADREQUESTS  The update handler has exceeded the maximum number of download requests. 
 0x80242012  WU_E_UH_UNEXPECTEDCBSRESPONSE  The update handler has received an unexpected response from CBS. 
 0x80242013  WU_E_UH_BADCBSPACKAGEID  The update metadata contains an invalid CBS package identifier. 
 0x80242014  WU_E_UH_POSTREBOOTSTILLPENDING  The post-reboot operation for the update is still in progress. 
 0x80242015  WU_E_UH_POSTREBOOTRESULTUNKNOWN  The result of the post-reboot operation for the update could not be determined. 
 0x80242016  WU_E_UH_POSTREBOOTUNEXPECTEDSTATE  The state of the update after its post-reboot operation has completed is unexpected. 
 0x80242017  WU_E_UH_NEW_SERVICING_STACK_REQUIRED  The OS servicing stack must be updated before this update is downloaded or installed. 
 0x80242FFF  WU_E_UH_UNEXPECTED  An update handler error not covered by another WU_E_UH_* code. 

Data Store errors

Error code Message Description
 0x80248000  WU_E_DS_SHUTDOWN  An operation failed because Windows Update Agent is shutting down. 
 0x80248001  WU_E_DS_INUSE  An operation failed because the data store was in use.
 0x80248002  WU_E_DS_INVALID  The current and expected states of the data store do not match.
 0x80248003  WU_E_DS_TABLEMISSING  The data store is missing a table. 
 0x80248004  WU_E_DS_TABLEINCORRECT  The data store contains a table with unexpected columns. 
 0x80248005  WU_E_DS_INVALIDTABLENAME  A table could not be opened because the table is not in the data store. 
 0x80248006  WU_E_DS_BADVERSION  The current and expected versions of the data store do not match. 
 0x80248007  WU_E_DS_NODATA  The information requested is not in the data store. 
 0x80248008  WU_E_DS_MISSINGDATA  The data store is missing required information or has a NULL in a table column that requires a non-null value. 
 0x80248009  WU_E_DS_MISSINGREF  The data store is missing required information or has a reference to missing license terms file localized property or linked row.
 0x8024800A  WU_E_DS_UNKNOWNHANDLER  The update was not processed because its update handler could not be recognized. 
 0x8024800B  WU_E_DS_CANTDELETE  The update was not deleted because it is still referenced by one or more services. 
 0x8024800C  WU_E_DS_LOCKTIMEOUTEXPIRED  The data store section could not be locked within the allotted time. 
 0x8024800D  WU_E_DS_NOCATEGORIES  The category was not added because it contains no parent categories and is not a top-level category itself. 
 0x8024800E  WU_E_DS_ROWEXISTS  The row was not added because an existing row has the same primary key. 
 0x8024800F  WU_E_DS_STOREFILELOCKED  The data store could not be initialized because it was locked by another process. 
 0x80248010  WU_E_DS_CANNOTREGISTER  The data store is not allowed to be registered with COM in the current process. 
 0x80248011 WU_E_DS_UNABLETOSTART  Could not create a data store object in another process. 
 0x80248013  WU_E_DS_DUPLICATEUPDATEID The server sent the same update to the client with two different revision IDs. 
 0x80248014 WU_E_DS_UNKNOWNSERVICE  An operation did not complete because the service is not in the data store. 
0x80248015 WU_E_DS_SERVICEEXPIRED An operation did not complete because the registration of the service has expired. 
0x80248016  WU_E_DS_DECLINENOTALLOWED  A request to hide an update was declined because it is a mandatory update or because it was deployed with a deadline. 
0x80248017  WU_E_DS_TABLESESSIONMISMATCH  A table was not closed because it is not associated with the session. 
0x80248018  WU_E_DS_SESSIONLOCKMISMATCH  A table was not closed because it is not associated with the session. 
0x80248019  WU_E_DS_NEEDWINDOWSSERVICE  A request to remove the Windows Update service or to unregister it with Automatic Updates was declined because it is a built-in service and/or Automatic Updates cannot fall back to another service. 
0x8024801A  WU_E_DS_INVALIDOPERATION  A request was declined because the operation is not allowed. 
0x8024801B  WU_E_DS_SCHEMAMISMATCH  The schema of the current data store and the schema of a table in a backup XML document do not match. 
0x8024801C  WU_E_DS_RESETREQUIRED  The data store requires a session reset; release the session and retry with a new session. 
0x8024801D  WU_E_DS_IMPERSONATED  A data store operation did not complete because it was requested with an impersonated identity. 
0x80248FFF  WU_E_DS_UNEXPECTED  A data store error not covered by another WU_E_DS_* code. 

Driver Util errors

The PnP enumerated device is removed from the System Spec because one of the hardware IDs or the compatible IDs matches an installed printer driver. This is not a fatal error, and the device is merely skipped.

Error code Message Description
0x8024C001  WU_E_DRV_PRUNED  A driver was skipped. 
0x8024C002 WU_E_DRV_NOPROP_OR_LEGACY  A property for the driver could not be found. It may not conform with required specifications. 
0x8024C003  WU_E_DRV_REG_MISMATCH  The registry type read for the driver does not match the expected type. 
0x8024C004  WU_E_DRV_NO_METADATA  The driver update is missing metadata. 
0x8024C005  WU_E_DRV_MISSING_ATTRIBUTE  The driver update is missing a required attribute. 
0x8024C006  WU_E_DRV_SYNC_FAILED  Driver synchronization failed. 
0x8024C007  WU_E_DRV_NO_PRINTER_CONTENT  Information required for the synchronization of applicable printers is missing. 
0x8024CFFF  WU_E_DRV_UNEXPECTED  A driver error not covered by another WU_E_DRV_* code. 

Windows Update error codes

Error code Message Description
0x80240001  WU_E_NO_SERVICE  Windows Update Agent was unable to provide the service. 
0x80240002  WU_E_MAX_CAPACITY_REACHED  The maximum capacity of the service was exceeded. 
0x80240003  WU_E_UNKNOWN_ID  An ID cannot be found. 
0x80240004  WU_E_NOT_INITIALIZED  The object could not be initialized. 
0x80240005  WU_E_RANGEOVERLAP The update handler requested a byte range overlapping a previously requested range. 
0x80240006  WU_E_TOOMANYRANGES  The requested number of byte ranges exceeds the maximum number (2^31 - 1). 
0x80240007  WU_E_INVALIDINDEX  The index to a collection was invalid. 
0x80240008  WU_E_ITEMNOTFOUND  The key for the item queried could not be found. 
0x80240009  WU_E_OPERATIONINPROGRESS  Another conflicting operation was in progress. Some operations such as installation cannot be performed twice simultaneously. 
0x8024000A  WU_E_COULDNOTCANCEL  Cancellation of the operation was not allowed. 
0x8024000B  WU_E_CALL_CANCELLED  Operation was cancelled. 
0x8024000C  WU_E_NOOP  No operation was required. 
0x8024000D  WU_E_XML_MISSINGDATA  Windows Update Agent could not find required information in the update's XML data. 
0x8024000E  WU_E_XML_INVALID  Windows Update Agent found invalid information in the update's XML data. 
0x8024000F  WU_E_CYCLE_DETECTED  Circular update relationships were detected in the metadata. 
0x80240010  WU_E_TOO_DEEP_RELATION  Update relationships too deep to evaluate were evaluated. 
0x80240011  WU_E_INVALID_RELATIONSHIP  An invalid update relationship was detected. 
0x80240012  WU_E_REG_VALUE_INVALID  An invalid registry value was read. 
0x80240013  WU_E_DUPLICATE_ITEM  Operation tried to add a duplicate item to a list. 
0x80240016  WU_E_INSTALL_NOT_ALLOWED  Operation tried to install while another installation was in progress or the system was pending a mandatory restart. 
0x80240017  WU_E_NOT_APPLICABLE  Operation was not performed because there are no applicable updates. 
0x80240018  WU_E_NO_USERTOKEN  Operation failed because a required user token is missing. 
0x80240019  WU_E_EXCLUSIVE_INSTALL_CONFLICT  An exclusive update cannot be installed with other updates at the same time. 
0x8024001A  WU_E_POLICY_NOT_SET  A policy value was not set. 
0x8024001B  WU_E_SELFUPDATE_IN_PROGRESS  The operation could not be performed because the Windows Update Agent is self-updating. 
0x8024001D  WU_E_INVALID_UPDATE  An update contains invalid metadata. 
0x8024001E  WU_E_SERVICE_STOP  Operation did not complete because the service or system was being shut down. 
0x8024001F  WU_E_NO_CONNECTION  Operation did not complete because the network connection was unavailable. 
0x80240020  WU_E_NO_INTERACTIVE_USER  Operation did not complete because there is no logged-on interactive user. 
0x80240021  WU_E_TIME_OUT  Operation did not complete because it timed out. 
0x80240022  WU_E_ALL_UPDATES_FAILED  Operation failed for all the updates. 
0x80240023  WU_E_EULAS_DECLINED  The license terms for all updates were declined. 
0x80240024  WU_E_NO_UPDATE  There are no updates. 
0x80240025  WU_E_USER_ACCESS_DISABLED  Group Policy settings prevented access to Windows Update. 
0x80240026  WU_E_INVALID_UPDATE_TYPE  The type of update is invalid. 
0x80240027  WU_E_URL_TOO_LONG  The URL exceeded the maximum length. 
0x80240028  WU_E_UNINSTALL_NOT_ALLOWED  The update could not be uninstalled because the request did not originate from a WSUS server. 
0x80240029  WU_E_INVALID_PRODUCT_LICENSE  Search may have missed some updates before there is an unlicensed application on the system. 
0x8024002A  WU_E_MISSING_HANDLER  A component required to detect applicable updates was missing. 
0x8024002B  WU_E_LEGACYSERVER  An operation did not complete because it requires a newer version of server. 
0x8024002C  WU_E_BIN_SOURCE_ABSENT  A delta-compressed update could not be installed because it required the source. 
0x8024002D  WU_E_SOURCE_ABSENT  A full-file update could not be installed because it required the source. 
0x8024002E  WU_E_WU_DISABLED  Access to an unmanaged server is not allowed. 
0x8024002F  WU_E_CALL_CANCELLED_BY_POLICY  Operation did not complete because the DisableWindowsUpdateAccess policy was set. 
0x80240030  WU_E_INVALID_PROXY_SERVER  The format of the proxy list was invalid. 
0x80240031  WU_E_INVALID_FILE  The file is in the wrong format. 
0x80240032  WU_E_INVALID_CRITERIA  The search criteria string was invalid. 
0x80240033  WU_E_EULA_UNAVAILABLE  License terms could not be downloaded. 
0x80240034  WU_E_DOWNLOAD_FAILED  Update failed to download. 
0x80240035 WU_E_UPDATE_NOT_PROCESSED  The update was not processed. 
0x80240036  WU_E_INVALID_OPERATION  The object's current state did not allow the operation. 
0x80240037  WU_E_NOT_SUPPORTED  The functionality for the operation is not supported. 
0x80240038  WU_E_WINHTTP_INVALID_FILE  The downloaded file has an unexpected content type. 
0x80240039  WU_E_TOO_MANY_RESYNC  Agent is asked by server to resync too many times. 
0x80240040  WU_E_NO_SERVER_CORE_SUPPORT  WUA API method does not run on Server Core installation. 
0x80240041  WU_E_SYSPREP_IN_PROGRESS  Service is not available while sysprep is running. 
0x80240042  WU_E_UNKNOWN_SERVICE  The update service is no longer registered with AU. 
0x80240043  WU_E_NO_UI_SUPPORT  There is no support for WUA UI. 
0x80240FFF  WU_E_UNEXPECTED  An operation failed due to reasons not covered by another error code. 

Windows Update success codes

Error code Message Description
0x00240001  WU_S_SERVICE_STOP  Windows Update Agent was stopped successfully. 
0x00240002  WU_S_SELFUPDATE  Windows Update Agent updated itself. 
0x00240003  WU_S_UPDATE_ERROR  Operation completed successfully but there were errors applying the updates. 
0x00240004  WU_S_MARKED_FOR_DISCONNECT  A callback was marked to be disconnected later because the request to disconnect the operation came while a callback was executing. 
0x00240005  WU_S_REBOOT_REQUIRED  The system must be restarted to complete installation of the update. 
0x00240006  WU_S_ALREADY_INSTALLED  The update to be installed is already installed on the system. 
0x00240007  WU_S_ALREADY_UNINSTALLED  The update to be removed is not installed on the system. 
0x00240008  WU_S_ALREADY_DOWNLOADED  The update to be downloaded has already been downloaded. 

Windows Installer minor errors

The following errors are used to indicate that part of a search fails because of Windows Installer problems. Another part of the search may successfully return updates. All Windows Installer minor codes must share the same error code range so that the caller can tell that they are related to Windows Installer.

Error code Message Description
0x80241001 WU_E_MSI_WRONG_VERSION  Search may have missed some updates because the Windows Installer is less than version 3.1. 
0x80241002  WU_E_MSI_NOT_CONFIGURED  Search may have missed some updates because the Windows Installer is not configured. 
0x80241003  WU_E_MSP_DISABLED  Search may have missed some updates because policy has disabled Windows Installer patching. 
0x80241004  WU_E_MSI_WRONG_APP_CONTEXT  An update could not be applied because the application is installed per-user. 
0x80241FFF  WU_E_MSP_UNEXPECTED  Search may have missed some updates because there was a failure of the Windows Installer. 

Windows Update Agent update and setup errors

Error code Message Description
0x8024D001  WU_E_SETUP_INVALID_INFDATA  Windows Update Agent could not be updated because an INF file contains invalid information. 
0x8024D002  WU_E_SETUP_INVALID_IDENTDATA  Windows Update Agent could not be updated because the wuident.cab file contains invalid information. 
0x8024D003  WU_E_SETUP_ALREADY_INITIALIZED  Windows Update Agent could not be updated because of an internal error that caused setup initialization to be performed twice. 
0x8024D004  WU_E_SETUP_NOT_INITIALIZED  Windows Update Agent could not be updated because setup initialization never completed successfully. 
0x8024D005  WU_E_SETUP_SOURCE_VERSION_MISMATCH  Windows Update Agent could not be updated because the versions specified in the INF do not match the actual source file versions. 
0x8024D006  WU_E_SETUP_TARGET_VERSION_GREATER  Windows Update Agent could not be updated because a WUA file on the target system is newer than the corresponding source file. 
0x8024D007  WU_E_SETUP_REGISTRATION_FAILED  Windows Update Agent could not be updated because regsvr32.exe returned an error. 
0x8024D009  WU_E_SETUP_SKIP_UPDATE  An update to the Windows Update Agent was skipped due to a directive in the wuident.cab file. 
0x8024D00A  WU_E_SETUP_UNSUPPORTED_CONFIGURATION  Windows Update Agent could not be updated because the current system configuration is not supported. 
0x8024D00B  WU_E_SETUP_BLOCKED_CONFIGURATION  Windows Update Agent could not be updated because the system is configured to block the update. 
0x8024D00C  WU_E_SETUP_REBOOT_TO_FIX  Windows Update Agent could not be updated because a restart of the system is required. 
0x8024D00D  WU_E_SETUP_ALREADYRUNNING  Windows Update Agent setup is already running. 
0x8024D00E  WU_E_SETUP_REBOOTREQUIRED  Windows Update Agent setup package requires a reboot to complete installation. 
0x8024D00F  WU_E_SETUP_HANDLER_EXEC_FAILURE  Windows Update Agent could not be updated because the setup handler failed during execution. 
0x8024D010  WU_E_SETUP_INVALID_REGISTRY_DATA  Windows Update Agent could not be updated because the registry contains invalid information. 
0x8024D013  WU_E_SETUP_WRONG_SERVER_VERSION  Windows Update Agent could not be updated because the server does not contain update information for this version. 
0x8024DFFF  WU_E_SETUP_UNEXPECTED  Windows Update Agent could not be updated because of an error not covered by another WU_E_SETUP_* error code.