I recently formatted my Dads HP Pavillion PC. After formatting and installing all the software it began to freeze, not BSOD just literally freezes and I have to shut it off using power button. I reformatted and reinstalled all the drivers again thinking it was just a bad format or bad driver installation. This morning it freezes again. I used the internal check for HD that comes with the computer (PC doctor i think) and it tells me that there is no problem with the hard drive. The computer has been with my dad for 6-7 years now and its on usually 12-13 hours a day. Anyone know any reason his could happen.