Does your PC freeze or shutdown after it's been on for a while, or whilst you are performing lots of tasks? If so, there's a good chance the machine is getting a bit hot under the collar . More specifically, your CPU (Central Processing Unit) is getting too hot and finding it hard to function properly.The reason for this problem is surprisingly good old fashioned, low tech: dust. The dust is drawn into your PC's case because the machine sucks in air to cool down important components. The hottest of these components is normally the CPU, which - like we do after exercise - produces heat as a by-product of its work. The same simple law that says work makes heat is also true of all your machine's major parts. As they work away they get a little toasty – and sometimes this can be dangerous.
