Error Codes
Error CodeError StringDescription

0x80240044

WU_E_PER_MACHINE_UPDATE_ACCESS_DENIED

Only administrators can perform this operation on per-machine updates.

0x80248013

WU_E_DS_DUPLICATEUPDATEID

The server sent the same update to the client with two different revision IDs. wuinstall.exe exited on <MyServerName> with error code 1.

0x80244021

WU_E_PT_HTTP_STATUS_BAD_GATEWAY

Same as HTTP status 502 The server, while acting as a gateway or proxy, received an invalid response from the upstream server it accessed in attempting to fulfill the request.

0x80072EE6

ERROR_INTERNET_UNRECOGNIZED_SCHEME     

The URL scheme could not be recognized or is not supported.