ITAs are all supplied with static bands, so if you don't have one, ask an ITA for help before opening your computer. Turn it Off When installing or connecting hardware components or peripheral devices like network cards, printers, scanners, and even keyboards, shut down the computer and unplug the power cord. There is no need for the computer to be on during these operations, and pulling the plug prevents unexpected power fluctuations from accidentally burning out the computer's circuitry as you handle its internal components. Keep it Clean Computers have all sorts of vents, shafts, and other openings to their inner workings. Over time, dust accumulates inside the case and may cause serious, expensive damage to the circuit boards if it is not removed.
Dust can also accumulate on, and cause damage to, the keyboard and monitor.
If you have a keyboard cover, use it. Another good idea is to use anti-static screen wipes on the monitor. These not only make your screen more pleasant to use, they fight dust build-up. Most computer accessory stores sell cans of pressurized air to blow the dust off of and out of your machine. Dust doesn't take very long to pile up.