New
#1
post upgrade system resets to unusable state.
I'm totally stumped.
I've upgraded from Win 7 to 10 twice and this happened both times. Basically on my Lenovo laptop I perform the upgrade and everything seems to work perfectly. After 1-2 hours of use, all of the files in the account I'm using seem to delete themselves in front of my eyes. I'm basically left with no valid user profiles and I can't even log into the system (once I log out) with any credentials because all user profiles are gone.
Essentially in HKLM\SOFTWARE\Microsoft\Windows NT\ CurrentVersion\ProfileList, I'm left with the following 3:
S-1-5-18
S-1-5-19
S-1-5-20
(and nothing else)
At this point I try all the recovery options in windows 10, and they all fail.
I have to reboot with a previous Windows 7 rescue disk and system backup.
So even if I didn't mind that I'd lost all of my files, I can't even login once this weird event happens. Any ideas?