After updating my PC from windows 10 to windows 11 PDM no longer works properly. Unfortunately it's been more than 10 days since the update was done and so no going back is possible except to reformat the PC!
Could you tell me if you have the same problem and especially what to do?
It's a hidden folder, if you don't have the "show hidden folders" option checked and "hide protected files from the system" unchecked, you won't see it. You can find these options from the folder options.
In Explorer, View>Options>View menu
In any case, try the link anyway, you will know more reliably if you can still go back.
The old folder is kept for as long as it is possible to go back and then automatically deleted. so if the deadline for going back has passed, the file has disappeared...