Shake up the can of compressed air and place the small extension straw onto air filter. This gives you better control and allows you to stand away from the computer. Holding the compressed air too close can actually result in liquid spraying onto the computer . That can damage the elecronics so hold about 4 to 6 inches away

Position the straw at an angle, aiming across the spaces in between the pcs keyboard. It is easy for crumbles of food and hair to fall between the cracks of the keys. Using the compressed air can force this out.

Blow out the cooling vents along the sides of the CPU (the central processing unit, or computer tower). You do not want to block these vents because they help keep the computer cool. Pull out whatever dust you can and then clean the rest off with the air can.

Open the cd/dvd drives of the computer and blow some air into the computer. This can remove dust and debris stuck to the laser and the reading lens. Debris on these two areas can prevent the disc from being read properly.

Power down the computer and remove all of the cables connected to the CPU. Take a Phillips screwdriver and remove the screws from the back of the CPU and take off the protective case. Use your compressed air can and blow away any dust or debris inside your computer. This includes dusting off your motherboard, processor and random access memory, or RAM. (All the main components of the computer connect to the motherboard.) Make sure the entire motherboard is dust-free. Place the CPU case back onto the computer, reattach the screws and plug the cables back in.


warning

* Hold the bottle at least 4 to 6 inches from the surface for best results.
* The bottle will get very cold the more you use it. Use it for a few minutes and then let it warm back up for a few minutes. on the cpu a quick spray is recomended as it very cold spray also you can use a vaccume cleaner but not near the motherboard has it is prone to static shock