I have a laptop and recently it started overheating, im sure its because of the dust built up inside (not a lot, dont worry ) ). Now I wanted to blow out the dust using compressed air, but from what I know, I must use a toothpick or something to keep the fan from spinning, because it might "fry", but I dont have any other access to it other than the side vent, plus that it is still in warranty and I dont want to open it (screws are painted). How am I supposed to clean it?