Why does my computer restart on it's own?

i have virus protection, adware ans spyware programs. they have detected and removed several threats, but it still isn't working right.

Why does my computer restart on it's own?suzuki

Restart Windows without restarting your computer

click for more details :

http://www.sacatech.com/ar/restart-windo...

Why does my computer restart on it's own?virus

1 check ur SMPS that is ur power suppy

2 also check ur ram it could b faulty

3 also could be due 2 over heatn

4 and also could b due 2 virus/spyware
I had a similar problem,

where my Computer would switch itself on and off.

My problem turned out to be, overheating.

I replaced the cooling system which solved my problem
there is a software problem

just use your recovery cd for your computer

it will reinstall windows

instead of wasting money on spyware ,virus and ardware programs

use this free one

it works good

SPYBOT SEARCH %26 DESTROY
uninstall the last program you downloaded, it didnt register properly

System restore will uninstall for a quick way out