I’m looking for something beyond the obvious as a suggestion. I have a VM that was running Windows 10 2004 and got upgraded fine through 20H2. It had a disk full problem at one time (plenty of space now) and the seemed to have screwed up Windows Update. I’ve run the troubleshooter numerous times, I’ve tried stopping the services, cleaning the old WU files and cert, and restarting the services. I’ve tried stopping all services and then running setup.exe from the 21H1 ISO. Running Windows update produces a 0x80004005 error:
Running setup.exe from the ISO generates this helpful dialog:
These are attempted updates. I haven’t tried “Reset” yet because I would prefer not to have to lose my apps/config of them.
Looking in the Reliability Monitor I see stuff like this:
SFC /SCANNOW fails with an error which indicates a version mismatch. DISM also fails.
Other than failing to update, the virtual PC operates great. Anyway, I’m open to any suggestions…