my computer keeps shutting off?

Question

My laptop keeps shutting itself off when i try to do anything that requires a lot of ram (?) like playing a game or running a virus or spyware scan.
I keep it relatively clean with a can of dust off, and have a chill-mat to keep it from over heating.
Lately even when im not doing anything, the CPU usage will be between 20 and 100%. If it runs at 100% for too long then it shuts off.

any ideas?

when it shuts off, theres no blue screen, everything just shuts off as if i had hit the power button. it doesnt reboot itself.
The CPU usage will be 100% for whatever im using at the time (virus scan, spyware checker, firefox, ect)

Answer 1

Do you see a blue screen when this happens? If so, that means there is a problem in Windows, possibly with a driver.

If you don't see one, then does it turn all the way off or just reboot? If it's all the way off, then it is probably overheating or you have a bad battery or power supply. I know you said you have a chill-mat, but sometimes they don't work as well as we need them to!

Answer 2

I assume you know the CPU runs at 100% because you looked on the Task Manager(the cntrl+alt+del thing), right?

If so, Task Manager should also tell you what process is using your CPU. Tell us that, and then we would be able to give you a more accurate answer.

Also, one more question:
When you say that it shuts off, how exactly does it do it?
I mean, does it go trhough the whole shutting down process, does it look like you just removed all power from it(sudden shut down), or does it do something else?

Answer 3

you have too much adware/spyware. also a chillmat wont cool the cpu. 100% cpu usuage can cause lots of heat.

Answer 4

ummm.......get a new 1?