Is your computer making noises or humming? Is dust collecting visibly on the external fan surface? Have you gone more than two months without cleaning the inside properly? Dust inside your computer can lead to component failure, fan failure, and slow performance. Keep your machine running smoothly and safely by taking the time to dust the interior. Don't wait until a fan dies and your machine overheats!
Steps to take
1. Retrieve necessary tools. You will need to have a can of compressed air or a small air compressor, plus a screwdriver if you must remove screws to open your machine. A small vacuum might come in handy for cleaning up the mess you make around the computer, but should never be used inside it. Wearing a dust mask is optional, but can save you a bit of sneezing if your machine is over due for cleaning
2. Shut down your machine. Turn off your computer and any surge protectors or alternate power sources it may be connected to. Most computers also have a "master power switch" on the back. Although the majority of users simply leave this switch on, flip it to the off position for extra safety.