Bad RAM, reinstalled Windows, want to get old windows back, but can't.

Isn't there also something that needs to be done with the boot file?

the existing bcd entry still points at the partition.

After an upgrade install ( win11)



here is the windows.old folder



it is quite big

so lets check if it all works

first create a windows.new folder ( or any name you like )



then select the windows namespace folders on the root of the partition




MOVE them to the windows.new folder. So the partition now looks like this




then select the namespace folders that are in the windows.old folder



MOVE them to the root of the partition so it looks like this



It booted up perfectly