please help ,bad virus infection

a virus,but you can try this

http://reviews.cnet.com/5208-7813-0.html?forumID=44&threadID=62603&messageID=743198

Also install Ewido,add as far as anti virus,AVG,or trend micro,or house call.

Tom

It just might be an overheating situation or a power supply on its last legs.

Try opening the case and using a can of compressed air blow out all the dust inside...especially the fans. While you're inside the case, power up the computer and watch all fan activity to make sure they're all spinning freely. There is another fan on the back of the power supply (there could be more than one fan on it as some power supplies have multiples) so check that one as well. The fan sitting on top of your CPU (usually in the area near the power supply) is critical....if that one isn't cooling the CPU enough, most modern motherboards will shut down the computer if the CPU is too hot in order to protect itself and the CPU from damage.

If all fans are okay....shut down the computer, and remove the sticks of RAM, clean out the slots they sit in, and reseat them firmly. The end clips for each stick should 'click' and lock the stick into place. Then reboot the computer and see if it still shuts down on its own.

The last thing if it's still shutting down on you would be to replace the power supply. There might be just enough ooomph left in it to power up, but not be stable enough to stay that way. Power supplies are relatively inexpensive at $50 or less.

TONI