Error code 0x8007042B is a Windows Update error that is usually associated with failed updates. This Windows Update error code 0x8007042B indicates that the update could not be installed because of a problem with the Windows Update service.
There are several possible reasons why you may encounter this Error 0x8007042B, including:
Corrupted Windows update files: If the Windows update files are damaged or corrupted, the update process may fail, resulting in Update Error code 0x8007042B.