What causes my computer to shut down for no reason?

Answer by  Dave95 (36)

Most likely your computer has a heating issue, and your hardware is automatically shutting down to prevent damage from there being too much heat. (Check the fan! )

Answer by  RR (33)

If a PC shuts down without the operator commanding it to do so for several reasons, this is not good news. The most common shut down is known as the "Blue Screen of Death" which is a sudden overload of memory that the computer envokes a "kernal dump. " A kernal is the operating systems main command program module.

Answer by  Boban (40)

There are many reasons that causes you computer to shut down. Problem in most cases is power suply. You can replace your power suply with some other and test it.

Answer by  Ken44 (70)

There could be several different problems with your computer. A lot of times when a computer shuts down for no reason it is due to a malicious virus. Sometimes the computer processor or operating systems fails and needs to be professionally repaired.

Answer by  sudha62 (9)

Your computer may have been attacked by a virus threat or may be your computer system is functioned by an other source through a LAN if your system is connected through LAN or your system may get shut down because of any spy ware so use any anti virus software to come rid of this problem.

Answer by  NinjaGuardian (89)

What there really happens and when? Are you checked spyware and malwares on your computers including virues. Check also event log, e. g Start --> Control Panel --> System and maintenance --> Administrative tool --> Event viewer. That on Vista, what you found there. Look around.