I upgraded to Windows 8.1 from Windows 8. The blank screen came up (if someone could help me fix that, I would mark it as the accepted answer). Now I want to rollback.
I see the Windows.old directory contains a Windows folder. I'm guessing it was a backup of my Windows 8 system.
Can I replace the main Windows folder with the one inside Windows.old to effectively rollback the operating system?
P.S.: I am asking this question on Windows 7, which is on another partition on the same drive on the same computer as the Windows 8.1 installation.