How to Clean a Touch Screen Computer

Co-authored by Jeremy Mercer

Last Updated: January 13, 2021 References

Touchscreen computers are convenient pieces of modern technology, but they often get dirty with regular use. Excess dirt and grime can get in the crevices of your touchscreen computer, impairing its functionality. By cleaning the touchscreen, removing debris from the keyboard and performing preventive care, you can keep your touchscreen clean and functioning great.

Part 1

Part 1 of 3:

Cleaning the Touchscreen

1
Turn off your touchscreen computer. Before cleaning your touchscreen computer, unplug and power down your device. This will reduce any electrical risks and keep your device a cooler temperature for cleaning.^{[1]
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2
Use a microfiber cloth to remove dust. Use a microfiber cloth to clean your touchscreen thoroughly, wiping from side to side. Be sure to wipe around the perimeter of the screen, using your fingernail to press a bit of cloth into any crevices where the screen meets the back. Apply gentle pressure to remove surface fingerprints.^{[2]
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Expert Source

Jeremy Mercer
Computer Specialist
Expert Interview. 26 July 2019.}
- Avoid applying extreme pressure, which can damage the crystals of your LCD.
- Microfiber cloths can be purchased at camera, technology or eyeglass stores. They are made not to scratch sensitive surfaces, such as your touchscreen.
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3
Clean stubborn smudges with eyeglass cleaner. For stubborn smudges, spritz 1-2 sprays of eyeglass cleaner onto your microfiber cloth so it is damp but not saturated. Wipe your screen in small circular motions to remove any oily smudges or fingerprints.^{[3]
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- Do not spray the cleaner directly on your touchscreen. This can cause the screen to become excessively wet and damage to the electrical components.
4
Dry your screen with a clean microfiber cloth. Use a clean, dry microfiber cloth to buff your touchscreen after using eyeglass cleaner. This will reduce streaking and dry any residual moisture.^{[4]
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Expert Source

Jeremy Mercer
Computer Specialist
Expert Interview. 26 July 2019.}

Part 2

Part 2 of 3:

Removing Debris from the Keyboard

1
Tap your keyboard to loosen dirt. Stand your keyboard on its side and give a gentle tap to loosen any food or dust stuck around the keys. Too not strike the keyboard too firmly, as you don't want to damage any internal components. A gentle knock the same way you'd knock on a door should be sufficient.^{[5]
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2
Remove surface debris with a microfiber cloth. With your keyboard flat in a normal position, use a microfiber cloth to wipe the keyboard in short strokes from one side to the other, sweeping all debris in one direction. Pay special attention to any areas of dirt, wiping around the keys where possible. Sweep any loosened debris into the trash.
3
Try a canister of compressed air to clear stubborn debris from keys. Hold the canister of compressed air at the distance and orientation indicated on the manufacturer's directions, and press the trigger to release air. Blow in short spurts, directing the stream at difficult-to-reach spots. Sweep up any debris that is freed.^{[6]
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Expert Source

Jeremy Mercer
Computer Specialist
Expert Interview. 26 July 2019.}
4
Use a damp cloth for liquid spills. If your keyboard has sticky, dried liquid spills, dampen a lint-free cloth with a drop of mild dish soap and a little water. Wring the cloth well. Spot clean any areas of staining, using a new area of the cloth as staining lifts.^{[7]
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Part 3

Part 3 of 3:

Caring for Your Touchscreen Computer

1
Clean your touchscreen regularly. Frequent cleaning of your touchscreen will keep it looking nice and functioning properly. Perform routine cleaning up to once a day. For most people, once a week will be sufficient.
2
Wash your hands before using your touchscreen computer. Oils on your skin can dirty your touchscreen more quickly. To keep your touchscreen its cleanest, always wash your hands before handling your computer. It can be helpful to avoid messy tasks, such as eating, while working.^{[8]
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3
Avoid using harsh chemical cleaners on the screen. Most household cleaners are not formulated for sensitive touchscreens. Only use eyeglass cleaner or solutions that are specifically formulated for technology screens to prevent damage to your device.^{[9]
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Expert Source

Jeremy Mercer
Computer Specialist
Expert Interview. 26 July 2019.}
4
Close the cover of your computer when it is not in use. If your touchscreen computer is a laptop, close the cover when you aren't using it. This will prevent excess dust build up and keep your screen protected from direct sunlight, which can damage the display.^{[10]
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Expert Q&A
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Question

Can you use Windex on a touch screen computer?

Jeremy Mercer
Computer Repair Technician
Jeremy Mercer is the Manager and Head Technician at MacPro-LA in Los Angeles, CA. He has over ten years of experience working in electronics repair, as well as retail stores that specialize in both Mac and PC.

Jeremy Mercer

Computer Repair Technician

Expert Answer

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Absolutely not! Please don't do this. You really don't want to use abrasive glass cleaners on a computer screen. Stick with a dry microfiber cloth. If it's really dirty, use a computer screen cleaner or 99% alcohol.
Question

What is the best way to clean a computer screen?

Jeremy Mercer
Computer Repair Technician
Jeremy Mercer is the Manager and Head Technician at MacPro-LA in Los Angeles, CA. He has over ten years of experience working in electronics repair, as well as retail stores that specialize in both Mac and PC.

Jeremy Mercer

Computer Repair Technician

Expert Answer

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Honestly, just wiping it down with a clean, dry microfiber cloth is going to be more than enough most of the time. There are specialty glass cleaners out there that will work if you're really interested in a thorough cleaning.
Question

Why can't you use chemical cleaners on a computer screen?

Jeremy Mercer
Computer Repair Technician
Jeremy Mercer is the Manager and Head Technician at MacPro-LA in Los Angeles, CA. He has over ten years of experience working in electronics repair, as well as retail stores that specialize in both Mac and PC.

Jeremy Mercer

Computer Repair Technician

Expert Answer

Support wikiHow by unlocking this expert answer.

Most computer screens are laminated, and a strong chemical cleaner will just wear down the exterior surface of the screen. Basically, it's too strong for the task you want to accomplish. You want to clean the screen, not wear away a layer.