Can anyone help me? I have a computer here (My brothers actually) that constantly turns on and off by itself. Sometimes it doesn't even let you boot up until the 4th or 5th self-rebooting....it tries and then starts over and over again. I remember not too long ago a virus did this and was hoping someone in here could tell me what virus did that....and how I can fix it? It won't let you get online either..... No...he did not have a firewall and let Norton expire......I yelled at him already.... :)