So this is a very confusing little event that literally just happened.
My mother uses a Windows Vista laptop that recently has become very slow and clunky. The day before yesterday, she began getting errors of some kind, though she couldn't specify anything beyond it being some kind of driver. She claimed her computer would turn itself off, go to a black screen with white letters claiming that her computer had been shut down to protect it, and boot itself back up. Yesterday, the error stopped happening, but she said her computer still ran very slowly. When she went to turn it off, it installed 10 updates, then shut down. Today, when she booted it up, she came in my room upset and said something had happened.
Indeed it had. All of her Internet Explorer bookmarks were gone, as was all of her music and pictures. She was also logged out of every website she uses (Facebook and Yahoo were the ones I tested). It was as though she had taken the computer out of the box... except for one thing: all the games she had installed off of disks were still there. Thankfully, all of her pictures can be recovered off of her Facebook page, and she said her music wasn't a big deal, but I'm still curious as to why all of her favorite pages and history were completely gone. I was unable to run a MalwareBytes scan, but her MacAfee antivirus is also intact after whatever happened, happened.
I'd say something cleaned out her hard drive, but it's pretty obvious that isn't really the case since her games and Windows shell are still intact. What on Earth happened? Is there anything I can do to fix it?