Computer was found to be full of dust. Excess dust can lead to overheating, computer instability, and or damage to your computer system. Dust also is the number one  cause of defective or poorly performing CD/DVD ROM drives and floppy drives. We highly recommend blowing the dust out of your computer case with canned dry air at least every 6 months. Keeping computers off of the floor can also help reduce the amount of dust in a computer system due to the fact that when people walk around thier feet kick up alot of dust that ends up sucked into the tower.