My computer just restarted itself i lost all my saved data i cant find my anti-virus its just some how got un-installed .. please someone try and help me 1 person needs an answerI do too

You are probably in a temporary user account and your data is available. Navigate to C:\Documents and Settings and look for your old user account and your data. If you find it, copy it to an external hard drive. Then scan your computer for infection: http://www.elephantboycomputers.com/page2.html#Removing_Malware If you can't do the work yourself (and there is no shame in admitting this isn't your cup of tea), take the machine to a professional computer repair shop (not your local equivalent of BigComputerStore/GeekSquad).MS-MVP - Elephant Boy Computers - Don't Panic!