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Practical guide · Cleaning

How to clean a keyboard: crumbs, dust and grime on desktop and laptop keyboards, without liquid damage

A keyboard collects crumbs, dust and skin oil faster than almost anything else on a desk, and a few minutes a month keeps it clean and the keys working. This guide follows the manufacturers' instructions: what to do first, how to get debris out from between the keys, how to wipe the keys without letting liquid inside, and the specific method Apple gives for MacBook keyboards.

Practical guide · Updated 2 November 2026

The essentials in 30 seconds

Disconnect the keyboard, or remove the batteries if it is wireless. Turn it upside down and tap it gently to shake out loose debris. Blow out what is left with compressed air, or vacuum the top with a dusting brush. Wipe the keys with a lint-free cloth lightly dampened with mild soap and water, or with isopropyl alcohol of 70 % or less on the cloth. Never pour or spray liquid straight onto the keyboard. On a MacBook, Apple's method is compressed air with the laptop held at 75 degrees, sprayed left to right, then repeated on each side. Microsoft suggests cleaning monthly or whenever needed.

  • Keep the compressed air can upright while spraying.
  • Put the liquid on the cloth, never on the keys.
  • Keys still not working after cleaning: take it in for service.
01 / Desktop keyboards

How to clean a keyboard, step by step

  1. 01

    Disconnect it

    Unplug the cable, or remove the batteries from a wireless keyboard.

  2. 02

    Tap out loose debris

    Hold the keyboard upside down and tap it gently.

  3. 03

    Blow out the gaps

    Use a can of compressed air to blow dust and debris from the surface and from between the keys.

  4. 04

    Or vacuum it

    As an alternative, gently vacuum the top of the keyboard with a dusting brush attachment.

  5. 05

    Wipe the keys

    Lightly dampen a lint-free cloth or cotton swab with mild soap and water and wipe the keys and case.

  6. 06

    Disinfect if you want to

    Microsoft says an isopropyl alcohol solution of 70 % or less, applied to a soft, lint-free cloth, is safe on its keyboards. Check your own keyboard maker's guidance.

  7. 07

    Let it dry

    Reconnect only when everything is dry.

02 / Laptops

How to clean a MacBook or laptop keyboard

Apple gives a specific compressed air method for MacBook and MacBook Pro keyboards:

  1. 01

    Fit the straw

    Use the straw that comes with the compressed air to control the airflow, and keep its end about half an inch from the keyboard.

  2. 02

    Keep the can upright

    Do not turn the can upside down while spraying.

  3. 03

    Tilt the laptop

    Hold it at a 75-degree angle, so it is not quite vertical.

  4. 04

    Spray left to right

    Spray the whole keyboard, or just the affected keys, in a left-to-right motion.

  5. 05

    Repeat on each side

    Turn the laptop onto its right side and spray again from left to right, then do the same on its left side.

If any keys still do not respond, Apple advises taking the laptop to an Apple Store or an Apple Authorized Service Provider. For other laptops, check the maker's support pages before removing any keycaps.

03 / Habits

Keeping a keyboard clean

  • Clean it monthly or whenever it needs it, as Microsoft suggests.
  • Keep drinks away from the keyboard.
  • Wash your hands before long typing sessions; less grime reaches the keys.
FAQ

How to clean a keyboard: frequently asked questions

What is the best way to clean a keyboard?

Disconnect it, tap it upside down, blow out the gaps with compressed air, then wipe the keys with a lint-free cloth lightly dampened with mild soap and water.

Can I use alcohol to clean my keyboard?

Microsoft says isopropyl alcohol of 70 % or less on a soft, lint-free cloth is safe for its keyboards. Never apply it directly to the keys.

How do I clean under the keys without removing them?

Use compressed air with the straw attached, or vacuum the top with a dusting brush.

How do I clean a MacBook keyboard?

Hold the MacBook at 75 degrees and spray compressed air left to right, then repeat with it turned on its right and left sides.

How often should I clean my keyboard?

Microsoft suggests monthly, or whenever it needs it.

What if keys still stick after cleaning?

On a MacBook, Apple recommends service at an Apple Store or Apple Authorized Service Provider; for other keyboards, contact the manufacturer.

Sources and method

Sources

Manufacturer guidance, checked on 2 November 2026 (02/11/2026).

Keys still sticking?

Note the keyboard model and which keys fail before contacting the manufacturer or a repair shop.

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