Okay; serious issues galore here. Basically, my mom's Windows 8.1 computer had some type of graphics card driver crash. She hard reset, it did a disk check. But then, suddenly, it couldn't find her profile, so it went to a temporary one. I tried to edit the registry to fix it, but that didn't work. So I ran System Restore, went back to the 13th. Everything is ALMOST back to normal.
The big problem is that a lot of her files in her home directories (i.e. music/pictures) have basically become "hidden" (such as her music and photos), and her libraries vanished. The folder sizes imply they're still there, it's just that I can't see them. Additionally, there was no wallpaper when it booted back up, and I can still see folders, just not the files. I see no error messages when I browse through them. Firefox also did not load its full profile.