I have a very annoying problem with Windows XP Professional. It reboots whenever it chooses and I can not find out any logical explanation for this behavior. It does not matter if I play a game, surf internet or listen music. After some time it shows me a message saying that computer will reboot in 60 seconds and I can not do anything to prevent this. Do you know what should I do to solve this issue?
You should check your system for viruses. This behavior is characteristic for Win32.Sasser worm and Blaster. This viruses made some real trouble few years ago but Microsoft released updates that fixed wholes in RPC that enabled these viruses to wrack havoc in computer world. You have not, obviously, made any update for long time ago so now it is a good opportunity to do so (when you clean your system, of course).