PC rebooting itself!!

aaroncaz

That's what you call it, I presume? Switching it self off, then on again? Just done it twice in the last hour, last time while i was running Avast for a virus! Is this serious, and why is it doing this?? Help please!! Am running Avast again!

Paparika

Does it just restart or does a blue screen with a message appear first? What operating system are you using, xp or vista?

aaroncaz

Paparika wrote: »

Does it just restart or does a blue screen with a message appear first? What operating system are you using, xp or vista?

No, no blue screen , I am on XP.

fwor

Probably the most common cause of these symptoms is overheating - usually caused either by fan failure or dust build-up inside.

Have you checked that all fans are running ok, and that the insides aren't dust-covered?

Having said that, if Avast found a virus and you aren't sure that it has been removed, it could of course be that - in which case you'll probably want to follow the malware removal guides in the stickies at the top of this board.

aaroncaz

fwor wrote: »

Probably the most common cause of these symptoms is overheating - usually caused either by fan failure or dust build-up inside.

Have you checked that all fans are running ok, and that the insides aren't dust-covered?

Having said that, if Avast found a virus and you aren't sure that it has been removed, it could of course be that - in which case you'll probably want to follow the malware removal guides in the stickies at the top of this board.

There was a couple of clicking noises coming from the fan area, I've never took the back of it to dust! Avast is running now and Superantispyware.

aaroncaz

No virus found and just the usual on superantispyware, had hoovered back of fan, hope that helps!

Paparika

could also point to a worn power supply.
To check your software is ok, open My Computer, rightclick C: and select properties, then 'Tools' tab. Run the errorchecking there to start chkdsk on restart.

aaroncaz

Paparika wrote: »

could also point to a worn power supply.
To check your software is ok, open My Computer, rightclick C: and select properties, then 'Tools' tab. Run the errorchecking there to start chkdsk on restart.

Thanks, will try that.