Over time, dust can build up inside a computer and can lead to overheating. Dust usually accumulates around the fan intake, where air is sucked into the computer from the room. This kind of dust build-up can reduce the efficiency of the fan and the computer’s ability to cool itself properly. Compressed air is the best method of removing dust, because it does not cause a build-up of static electricity like a vacuum cleaner or feather duster. Cleaning your computer tower of dust is a relatively easy task which should take no longer than half an hour.
Turn off and unplug your computer from the electrical supply. Use the screwdrivers to unscrew the casing surrounding the tower of the computer and remove the cover.
Replace the cover and screw it back in to place. Plug your computer back in and turn it on. If the computer is running cooler as a result of less dust you may notice a reduction in noise from the fans as well as improved performance.