Taskbar/desktop flashing and nothing will open
My daughters laptop has suddenly gone mad!!! She was using firefox- chatting on a forum- and had her pictures folder open. For no apparent reason her pictures folder closed, then task bar disappeared, then firefox closed. She also had imvu messenger open and that was ok. The task bar started flashing and the desktop icons disappeared for about 10 seconds and then also started flashing, and the background changed to one she used about 3 changes ago. She decided to shutdown by pressing the on/off button. When it started again it was still flashing so she turned it off.
This morning it is still doing the same thing- I shut it down from the task manager, restarted in safe mode and did a systems restore. When it rebooted it was still flashing. Automatic things such as the AV update worked, but the windows button and task bar wont open anything.
All her AV is up to date. Anyone got any idea of what might be happening and how to fix it? Thanks