Alright so, i am usin Win xp SP2 32 bit, to start it off. I bought this pc off a friend, it runs good other than the random freezing/locking up (sometimes) and random pc restarts. It mainly does it when im playing games, or i can just be on the desktop browsing the web or anything and it'll lock up sometimes. When i mean lock up i mean totally lock up as in cant move the mouse, cant ctrl alt delete, nothing everything is frozen solid. Also a day or 2 ago, my PC got 2 bluescreen errors in game and pc restarted. Any help is appreciated, and if you need any more information i'll be gladly to post