random reboot loop ok this follows on from my previous thread. Thought I'd sorted it but yet again I am thwarted! Spent all aft reinstalling windows and setting up my comp again for about the 3rd time in 2 days now. :fuming: So I thought it was the windows updates so I dloaded all apart from the most recent. Rebooted & installed. All good no probs, so i figure ive cracked it.... Spend another hour or so installing apps i use, customising it all how i like it. numerous reboots after installations still no probs. Watch a video in media player.... installed cuteftp which i hadnt done previously so this cant be the prob. rebooted again to complete installation, windows loads up, get the gay little jingle and bang! Reboots like someone has just turned off the power! No error messages, no blue screens, just power off and on again. Now its stuck in a loop again like this!! :spangled: Now this seems pretty random to me and I've now come to conclusion it must be a hardware prob?? The systems not oveloaded power wise. I cant boot up in safe mode either cos the standard keys dont seem to work F8 selects the boot device on my system :spangled: How the hell do i break the loop and isolate the prob?! :angry: