Laptop Powering Down For No Reason

My laptop powers off for no reason after about 10 or 15 minutes of use, it is not hot at all. Can anyone reccomend anything? I've already tried to use the recovery CDs and it still messes up. Thanks

 

plug it into the mains and try it.

 

IF you are running on the battery only? maybe the battery is bad. like it cant keep a charge. Happended to my dads laptop

 

Its on the charger whenever I use it.

And what does
"plug it into the mains and try it." what is the mains?

 

doesnt it power off if you don't use it? i mean, keep it idle but not on sleep mode

 

No, like if Im in the middle of doing something it will just power off

 

Is it a mac?

If it is thats the problem.

 

Umm maybe its over heated...does the fan work.If so , is there room between the vantilation and a object.

 

No its not a mac

and its not hot at all, and Im pretty sure that the fan works too.

 

There always has to be a reason

 

Does windows shutdown? Or is it just like the battery is suddenly empty?

 

Like the computer just goes black screen and has kinda a swoooosh sound. And then I can just press the power button again to turn it back on for like 15 mins til it does it again.

 

Is it a certain application it happens with?

Or did you install any new hardware lately?

 

Nope, its everything, if Im playign counter strike, WoW, just using the internet, anything. And no, no new hardware

 

Can you go to hardware overview? I'm not sure what it is called in english, most likely something like device manager. Please go there and check on errors. (a yellow sign with a black !)