Power off and unplug your monitor. Make sure the monitor is not too hot before proceeding.
If your screen is dusty, use a clean, soft, lint-free cloth to wipe it gently. Do not use a paper towel, as it may scratch the screen's surface.
If your screen needs more than a dry wipe, use a solution that is 50% water, 50% isopropyl alcohol with a soft, lint-free cloth. Alternatively, you may use cleaners that specifically state they can be used with LCD monitors.
Always moisten the cloth first and then wipe the LCD in one motion, from top to bottom.
Clean Keyboard, Mouse, and Case
Use compressed air to blow out any dust or debris from your keyboard.
Wipe down the plastic case of your computer with a damp cloth.
Unplug the mouse from your computer. Turn over the mouse then clean off any debris stuck to the bottom. Next, clean the surface area on which your mouse moves.