Maybe you do not notice, but, daily, a lot of dust is deposited on your PC. Small cracks and holes allow dirt to get inside the machine. In addition, keyboard, mouse, monitor and other components become filthy with ease.

To prevent malfunctions and damage to your health, wipes should be cleaned periodically. Of course, using the dust duster already helps, but that is not always enough. Today, we will teach you how to clean your computer safely and easily.


Before you begin, make sure that the PC is properly turned off. We recommend that you never use water to clean the hardware components. It is not recommended to use ordinary alcohol or derivative products, as they can spoil the pieces.

It is important to carry out the entire process with caution and delicacy, as any sudden movement can damage the computer parts. In addition, we advise you to clean it in an airy place that is easy to clean afterwards.

Necessary materials

To perform all procedures, you will need:

  • Lint-free cloths;
  • Swabs;
  • Toothpick;
  • Detergent;
  • Water;
  • Distilled water;
  • Isopropyl Alcohol;
  • Vacuum Cleaner;
  • Long-haired brush and soft bristles;
  • Hair dryer with cold air;
  • Newspaper sheet;
  • Screwdriver;
  • Philips key;
  • Tweezers;
  • A can of compressed air can be useful.

Cleaning the “mouse”

Let’s start our cleanup by the easiest component, the mouse. To clean it, you only need to moisten a cloth with water and detergent and wipe the cloth on the outer surface of the periphery.

If you use a ball mouse, open the bottom compartment, remove the ball and, with a toothpick, remove the scrap from the pulleys. Finally, use tweezers to remove dirt. It is worth repeating this cleaning with certain frequency, since the accumulated dust can affect the operation of the peripheral.

Basic keyboard cleaning

Now that we’ve done the mouse cleaning, it’s time to give a general keyboard. First, let’s do a basic cleaning, because not all keyboards need to be disassembled to stay clean.

  • Disconnect the keyboard from the PC and take it to a place where you can make dirt. Do not remove the peripheral while the computer is on, as this may cause problems;
  • Open a newspaper on the floor to prevent dust from falling on the floor;
  • Turn the keyboard upside down and shake it to remove some of the dirt;
  • If you like, pat lightly on the back of the keyboard;
  • Now use the can of compressed air to expel the rest of the dirt. If you do not have one, it’s worth using a hair dryer with cool air;
  • Pass the vacuum-cleaned nozzle over the keyboard;
  • Apply a little isopropyl alcohol on a cotton swab. Pass the swab on the sides of the keys and in the gaps. Do not use too much force, as a key may move;

Lightly moisten a cloth and apply a little detergent. Run the cloth over the keys to remove the dirt that has been stuck. Finally wipe with a dry cloth.

Advanced keyboard cleaning

Often dirt accumulated inside the keyboard may prevent the device from working properly. To solve the problem, you must remove the keys. This procedure is risky, so you should be sensitive when performing the following steps. If you do not feel confident, skip this step.

  • First, record the position of each key, as you will need to place them in the appropriate locations later;
  • Now, using the screwdriver as a lever, remove each key;
  • Care must be taken to remove the large keys, as it is easy to damage the fittings;
  • After removing the buttons, use compressed air (or the hair dryer) to expel the dirt;
  • Wipe a damp cloth across the surface;
  • Finally, replace the keys in place.

Taking dirt out of the cables

The cleaning of the external cables is less laborious, as you simply dampen a cloth in a mixture of detergent with water, pass it on the cables and then dry them with a dry cloth.

Do not forget to dry the metal parts very well, as such gliding can cause problems with electricity. In fact, avoid damp cloths in line filters and power source connections.

Cleaning the Monitor

Now, it’s time to clean your monitor. Before starting, turn the power off to see the stains and dirt on the screen. The process below is for LCD and CRT screens.

  • Using a dry cloth, remove as much dirt as possible from the screen. If your equipment is LCD, do not apply too much force, as you can damage the screen;
  • If any stains have not been removed, moisten a cloth with distilled water and wipe it over the marks of grease and dirt. If you have purchased a special screen cleaning product, you can use it as long as it does not contain alcohol;.

To clean the monitor housing, use a cloth moistened with water and detergent. We do not recommend using alcohol to clean any part of the device;

To finish, wipe dry the entire frame and cables.

Final cleaning: the cabinet

Finally, there was the hard part left. The cleaning of the cabinet must be carried out very carefully, as all the components that give life to the machine are inside this huge box. Follow the steps below carefully and do not even think about using alcohol.

  • Disconnect all cables first;
  • Use a vacuum cleaner to suck dirt out of the air inlets on the back, front and sides;
  • Now, with a cloth dampened with detergent, remove stains from the outside. Do not use a damp cloth as any drop of water that falls into the cabinet may affect some fundamental component;.

Then wipe with a cloth moistened only with water. Finally, dry cloth to leave the cabinet dry.

Cleaning the interior

Doing an internal housecleaning is important, especially if you consider that excess dust can affect the performance of the machine – so much dirt can cause the CPU fan to stop and cause serious damage to the chip.

To perform this procedure, we recommend that you discharge the static energy from your body. Just touch the ground to get rid of the excessive energy. Well, let’s clean up:

  • Remove the screws on the back of the case with a philips wrench;
  • Remove the side cover;
  • Again, we remember to discharge the static energy;
  • Now use a brush to sweep up all the dirt accumulated on the components. If you know how to reassemble the machine, it is best to undo the cards, memory modules and other items to clean the slots;
  • Then use the brush to remove the dust from the processor fan;
  • Finally, use a dry cloth to dust the cables.

Ready! Your machine is ringing! From now on, be careful not to drop anything on the keyboard, avoid eating on top of the notebook and perform a periodic cleaning.