I should clarify saying I'm using windows 7.
I have a decent gaming pc I've had for roughly 7-8 years making some changes along the way and last December or so it started this thing where it would restart once or twice(but no more than 2) when turning it on or taking it out sleep mode but now it's at the point where it will consistently reboot itself unless I can manage to get it into safe mode which is odd. I have a friend who actually built it for me looking at it but having trouble figuring it out. We tried to reinstall windows but the pc will restart before it gets a chance to load the CD. I could really use a helping hand to point my friend in the right direction. Please

Chowhound
Comic Vine
GameFAQs
GameSpot
Giant Bomb
TechRepublic