Clean computer keyboards by powering down, shaking out debris, and using compressed air before wiping surfaces with a lightly dampened lint-free cloth.
The right cleaning routine for your keyboard comes down to one thing: keeping liquid out while getting the gunk out. Most buildup is loose crumbs, dust, and skin oils, which means a quick dry pass followed by a gentle wipe handles the job without any special chemicals.
What You Need Before You Start
Gather three things: a can of compressed air, a soft lint-free cloth, and access to a faucet for a mild soap solution. Optional but useful tools include a cotton swab for tight corners and a small vacuum with a dusting brush attachment.
Microsoft’s own cleaning guidance for its mice and keyboards calls for mild soap and water on a cloth, not a list of specialty products. Skip paper towels and abrasive cloths — they can leave scratches and fibers behind.
The Step-by-Step Keyboard Cleaning Process
Follow this order and you won’t drive debris deeper into the switches. The whole routine takes about five minutes.
- Power down and disconnect. Unplug the keyboard from your computer. If it’s wireless, remove the batteries. This prevents accidental key presses and protects the electronics from static.
- Turn it upside down and tap. Hold the keyboard at a slight angle and tap the back firmly. Loose crumbs and dust will fall out. For stubborn debris, use a vacuum with a dusting brush attachment.
- Blast with compressed air. Use short bursts between the keys at an angle. Never turn the can upside down while spraying — the propellant can freeze and damage the switches.
- Wipe the surfaces. Lightly dampen a lint-free cloth with water or a mild soap solution. Wipe the keycaps and the surrounding frame, avoiding drips into the openings.
- Dry before reconnecting. Let the keyboard air-dry completely for a few minutes. Reconnect only once every surface is dry to the touch.
When you’re done, keys should look clean and feel noticeably fresher. If a key still sticks or feels off after cleaning, the issue may run deeper than surface grime.
Special Cases: Laptops and Alcohol Use
Laptop keyboards need a gentler touch because the keys sit closer to the internal components. Rotate the notebook to the other side and repeat.
For general cleaning of Apple products, a soft lint-free cloth is the only recommended material. Apple explicitly warns against aerosol sprays, bleaches, abrasives, and cleaners containing hydrogen peroxide.
Alcohol has a place in keyboard cleaning, but only in controlled amounts. Microsoft allows an isopropyl alcohol solution of 70% or less applied to a cloth, not poured onto the device. Apple permits 70% isopropyl alcohol wipes, 75% ethyl alcohol wipes, or Clorox Disinfecting Wipes on hard, nonporous surfaces like keyboards — as long as moisture stays out of the openings.
If keys stay unresponsive after a proper cleaning, Apple recommends service at an Apple Retail Store or Authorized Service Provider. Microsoft similarly notes that persistent issues may signal deeper debris or hardware failure rather than surface dirt.
Mistakes That Damage Keyboards
- Spraying liquid directly onto the keyboard. Both Microsoft and Apple explicitly discourage this. Liquid seeps into switches and can short-circuit the board.
- Using aerosol sprays or compressed air upside down. These can leave residue or freeze components.
- Cleaning with bleach or hydrogen peroxide. These eat away at keycap lettering and plastics.
- Wiping with paper towels or abrasive cloths. These scratch surfaces and leave lint in the gaps.
A good rule: if the cleaning method involves soaking or pooling liquid, it’s wrong for a keyboard. If it involves a dry tool or a barely-damp cloth, it’s likely fine.
If you’re in the market for a keyboard that’s easier to keep clean, check out our roundup of the best computer keyboards for daily use — several models feature spill-resistant designs and removable keycaps that simplify maintenance.
FAQs
Can I use rubbing alcohol to disinfect my keyboard?
Yes, but only on a cloth. Microsoft permits isopropyl alcohol at 70% concentration or less applied to a lint-free cloth before wiping. Apple allows 70% isopropyl alcohol wipes on hard, nonporous surfaces. Never pour or spray alcohol directly onto the keyboard, and avoid getting moisture into the openings between keys.
How often should I clean my computer keyboard?
For daily-use keyboards, a quick upside-down tap and compressed-air pass once a month keeps dust manageable. A full wipe-down with a damp cloth works well every three months or whenever keys feel sticky. If you eat at your desk or have pets, you’ll want to clean more often — crumb buildup accelerates wear on the switches.
Why is my keyboard still sticking after cleaning?
Surface cleaning removes dust and oils but won’t fix debris lodged beneath the keycap. If a key still sticks after compressed air and a wipe, the switch itself may be damaged or have liquid residue inside. For laptops, this usually means professional service. For desktop keyboards, consider removing the keycap for a deeper clean, or replacing the keyboard if the issue persists.
References & Sources
- Apple Support. “How to clean your Apple products.” Official guidance on cleaning hard, nonporous surfaces and the MacBook compressed-air method.
- Microsoft Support. “How do I clean my Microsoft mouse or keyboard?” Microsoft’s official cleaning steps and alcohol-solution guidance.
- Microsoft Surface Support. “How do I clean my Microsoft mouse or keyboard?” Surface accessory-specific cleaning instructions.