My MacBook keys started sticking — here's what fixed it

A few of my keys — mostly the spacebar and the letter "A" — started feeling stiff and occasionally double-typing. I didn't want to book a full repair if it was something simple, so I tried a few things at home first. Sharing what actually worked, in case anyone else runs into this.

What I tried first

A few of my keys — mostly the spacebar and the letter "A" — started feeling stiff and occasionally double-typing. I didn't want to book a full repair if it was something simple, so I tried a few things at home first. Sharing what actually worked, in case anyone else runs into this.

I started with compressed air, holding the can upright and spraying at an angle under the affected keys with the laptop tilted at 75°. This alone cleared out a surprising amount of dust and got the spacebar working normally again.

What actually fixed the "A" key

The "A" key needed a bit more. I gently popped the keycap off (there are guides online for your specific keyboard type — butterfly vs. scissor-switch mechanisms come off differently), wiped the mechanism with a dry microfiber cloth, and used a drop of isopropyl alcohol on a cotton swab around the hinge before letting it dry fully and clicking the cap back into place.

When to stop and book a repair

• If a key doesn't register at all, rather than just feeling stiff
• If there's any liquid spill involved, even a small amount
• If more than 2–3 keys are affected at once