I'm looking at a friends computer and it has an issue where it starts and boots windows and turns off suddenly. It will go into safe mode but that too sometimes abruptly restarts the computer. Her previous tech was in her own words "insane" and that's why she cant take it to him again. From looking at the BIOS I've determined that the previous tech had attempted to overclock the cpu. I'm thinking this is the issue, but I've had nothing but problems trying to fix it. There are times that the computer will boot, and work perfectly (but that's 1 out of 10). Any ideas or helps will be greatly appreciated as I'm starting to lose my hair.