Windows XP Shuts Down Automatically at Random Times
I was recently servicing a computer that would reboot itself sporadically during the boot process and then sometimes during normal use. This was a frustrating problem because the cause of the reboots can be so many things (failing power supply, overheating, virus, etc). About a month ago I was able to fix a computer that rebooted at the same time during the boot process. That problem was solved simply by running a chkdsk and fixing a bad sector – details here. This problem isn’t as clear cut because the reboots happen at random times.
Random reboots are the result of either a software or hardware problem. It’s best to start investigating the software before replacing hardware components.
