I'm working on a Windows XP computer that randomly restarts. I've tried to run Malware bytes to clear it of viruses but after about 4 min or so it goes into a system restart. In BIOS I noticed the CPU is running at 99C right after it restarts. I have cleaned the insides with compressed air and run a disk check that came back negative for errors. I've tried to run some programs in Safe Mode but for some reason when I'm prompted to start computer in safe mode or regularly, I can't tab or use the arrow keys to choose safe mode. Eventually the screen times out and starts windows normally. ( could a virus not allow me to choose windows to start in safe mode?)
I'm thinking it's a thermal issue but I'm not ruling out a virus. Any suggestions before I replace the thermal paste and resink the CPU?
Edited by hamluis, 06 January 2014 - 11:33 AM.
Moved from XP to Internal Hardware - Hamluis.