How to Clean a Monitor, a CPU, a Mouse and a Keyboard

Since the topic of today treats the same subject, which is the cleaning of a computer inside and outside, I will present in the same article how to clean the mouse of a computer and also the CPU. In other words, the today’s article is divided into four main parts, each of them containing the steps that must be followed in order to solve this problem.
I. The monitor

Keep the monitor away from dust and scratches.

1. Add the following: an anti-static cloth or other soft cloth (cotton clothing pieces are best for this purpose), and a cleaner – a cleaner for cleaning glasses and a special liquid for monitors.
2. Check your manual for specific instructions.
3. Turn off the monitor.
4. If using an aerosol-based product, follow the instructions on the tube. Otherwise, spray a small amount of liquid on the cloth. Do not spray liquids near the ventilation holes.
5. Clean the entire screen.
6. Wipe the screen with a dry cloth immediately.
7. Repeat the procedure if necessary.
8. Clean the plastic case with the same product or a product for cleaning the plastic.

Typical cleaning products may leave traces. Paper towels may leave dust. Ignore the advice to use anti-static products that make the clothes softer, because they will scratch the screen. Never use any abrasive sponge, abrasive cleaner or alcohol based products. The screens of the laptops are not made of glass. They can break easily and it cost enough to repair them. Follow the instructions in the manual, which can vary depending on your monitor. Dell computer screens can be cleaned easily using a soft cloth dipped in water.


The computer fans pull dust into the case. If not cleaned, it can prevent ventilation, possibly leading to failure of some components. If you have a service contract which deals with maintenance, take the computer to be disassembled and cleaned. Otherwise follow these steps.

1. Check the manual. If the producer provided specific instructions, follow them.
2. Buy any product you need: compressed air, a plastic or metal cleaning product, a soft brush (such as a painting brush), an antistatic cloth and a dust mask if you are allergic.
3. Turn off the computer.
4. Leave the computer connected to the source of protection.
5. Disconnect all peripherals.
6. Remove the cover (check the manual for instructions).
7. Make a connection to the ground with any special equipment that you own. Otherwise, make the connection to the ground by touching the metal chassis of the housing.
8. Spray compressed air on the fan blades, power supply circuit and optical drive and storage component.
9. Carefully clean the dust which was not removed by the airflow.
10. Clean the dust on the bottom of the housing.
11. Clean well the inside and outside of the casing.
12. Replace the cover and connect the peripherals.

If possible work in an area where there is no carpet on the floor. Be careful not to touch any integrated circuits. Touch as little as possible the interior of the computer. An accident caused by static electricity (or fat) can occur several months after reaching your components. Some sources recommend using a regular or special cleaner. These devices can cause static or magnetic defects, or may disrupt or aspire poorly integrated circuits.

III. The mouse

The model of a mouse does not seem to change anytime soon. When the mouse does not work anymore, all you might is simple maintenance.

1. Remove the plug of the mouse and turn it upside down to see what kind of mouse is. The most common is the mechanical one, it has a small rubber ball on the bottom that runs on your desk or mouse support. These types of mice are known to attract and retain dirt. If your mouse has no ball and has a small light, is optical and you can move to step 6.
2. If your mouse has a rubber ball, you can remove it by turning the lock ring that holds it in a position. Search an arrow that shows you which way to turn or press the ring.
3. Remove the ball and clean it with a cloth with soap and water. Dry it carefully.
4. If you find dirt in the cover of the mouse, clean it with a toothpick.
5. Put the mouse back.
6. The optical mouse occasionally clean with alcohol and a paper napkin. This mouse stays clean a bit longer.

Other potential problems.

1. Check the back of the computer to see the connection. Is the cable connector plugged securely into the corresponding slot? Most newer computers have a special label for the mouse connector.
2. If the mouse cable seems used, borrow a mouse from someone and see if your computer accepts it. If it works properly, then your mouse will be replaced.

If you occasionally wash the stand mouse with soap and water, this will prevent the mouse to get dirty.

IV. The keyboard

A grotesque appearance is only one reason to clean the keyboard. If the dust gets under the keys, they might not work properly. The liquids spilled on it can mean the end of the keyboard if you do not care for it.

1. Buy the materials you need: compressed air (aerosol in a tube), soft cloth and any liquid suitable for cleaning plastic, which is not abrasive, and a dust mask if you are allergic.
2. Check the manual. If the manufacturer has included specific specifications, follow them.
3. Turn off the computer.
4. Disconnect the keyboard.
5. Use compressed air to clean between the keys. Spray from an angle so as to remove the dirt and dust.
6. Easy to shake off the dust on the keyboard.
7. If using a liquid based on aerosol, follow the manufacturer’s instructions. Otherwise, spray a small amount on a cloth.
8. Clean the keys and housing.
9. Wait until the keyboard is dry then you can reconnect it to the computer.
10. Reconnect and turn on the computer keyboard.

In dusty industrial areas, use plastic covers for protection. If you spill a large amount of liquid or if the liquid is sticky, your keyboard cannot be repaired. To be safe, keep the drinks away from computers. If you spill liquid on the keyboard, turn it face down after you have disconnected it and allow the fluid to leak. If you have a lot of liquid or the liquid is sticky, wash it with water. (Do not immerse the keyboard in water.) Leave the keyboard to dry for 72 hours. Do not spray liquid directly on your keyboard.