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#1
Windows is no longer activated after changing system time
My machine has been running just fine for a couple of years, surviving an upgrade from Windows 7 and multiple Windows reinstallations without any problems concerning activation. I am not sure where I got the key from back in the days, but I am certain I bought it on the internet.
Some days ago, I changed the system date into the future and back again when testing some software. I used to do this in the past and never experienced any problems. This time, however, shortly afterwards, an open Microsoft Office reported that it had detected an error and needed to be closed. I uninstalled and reinstalled Office, which failed. Only then did I realize that apparently Windows itself wasn't activated any more.
In system settings on the Activation page, Windows shows the error 0xC004F012. Trying to troubleshoot activation in Windows shows me error 0xC00000, so apparently there is some sort of permission error invoking the activation routines. I also noticed that the Software Protection service cannot be started (Error 5: Access is denied.)
I carried out the steps described here. The results of the diagnosis are attached.
I also tried what was suggested here: I booted into Windows PE and ran DISM using an ESD file generated by the Media Creation Tool. As far as I could tell, neither sfc nor DISM could find any errors. After rebooting, the error persists.
Is there anything else I can try?
I am on Windows Version 1909 (Build 18363.778).
LicensingDiag.txt
Last edited by Brink; 12 May 2020 at 18:42. Reason: blacked out product key in attachment