AJ wrote:

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oh kool nwell maybe u can help mi cauz rite now mi a hav computa problem an m inuh kno weh fi duh-- mi system turn off by itself-- suh try help mi out :plz:

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It would help better or more if I knew what you were doing when the PC restarted and how often it occurs.  But, not withstanding that I would need to know a little bit more I can properly diagnose your problem, there are 6 major reasons for a computer to be restarting on its own.

1. A virus
2. Overheating
3. Faulty memory chip
4. Insufficient memory
5. Bad or incorrectly configured software or windows drivers
6. Misconfiguration of some of you hardware

 

Assuming you have no viruses the problem could be that your components are overheating, many of the desktops being built these days come with motherboards that will restart or even shutdown once they overheat. Try putting your PC somewhere thats a little bit cooler and also where its less likely to gather dust as this will affect the fans performance. I would also recommend that you purchase a can of compress air, it sells for about JA$500 at any computer store (Computer Royal just to name one). This will effectively clean up your mother board like it just came from off the production line; instructions on how to use the compress air are on the bottle.

 

If you do have a virus I would recommend AVAST antivirus software that is out performing Norton these days.

 

If you do have incorrectly configured software or hardware it would mean that your computer would restart whenever you are trying to use the incorrectly configured item. For me to help troubleshoot must first know more details of your case.

 

Failing all this you need to get your PC check out by a trained professional for further trouble shooting.

 

Zoners this is also where you come in, help AJ giving him some tips of your own. Feel free also to PM me to on anything you assume that I might have overlooked.