I'm on an administrator account on Windows 8. I have UAC disabled. Still, when I go to install certain programs, it fails and rolls back because it needs administrative privileges. Why?
If you moved the UAC slider to the bottom, the UAC is still active!
This is a change to Win8. This is done because the Windows Store Apps require an active UAC.
If you don't use the apps, use regedit to change the value