Keyboard diagnosis

Some Laptop Keyboard Keys Not Working? Clean, Repair or Replace

Why some laptop keys stop working, quick things to try, and when to replace the whole keyboard instead of fighting individual keys.

4 min read Updated 2026-06-13

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What this guide covers

One stuck key can be cleaned; several dead keys usually mean a damaged membrane or ribbon.

Rule out software (language/filter keys) before assuming hardware.

After a spill, replacement is more reliable than drying.

Quick checks first

Before blaming the hardware, rule out software: check the keyboard language/layout, turn off Filter Keys (Windows), and test in a different app. Restart once. If the same physical keys fail everywhere and in the BIOS screen, it is a hardware fault.

Check language/layout
Turn off Filter Keys
Test in BIOS (pre-Windows)
Note which keys fail

Clean, repair, or replace

A single sticky key can sometimes be cleaned or a keycap refitted. But when several keys fail, repeat, or a row is dead, the membrane or ribbon beneath is usually damaged — common after spills and wear. Replacing the whole keyboard restores every key at once and is the lasting fix. Match the variant (backlit, frame, connector) to your laptop.

Questions customers ask

Why did only some of my laptop keys stop working?

Usually a damaged membrane or ribbon under those keys, often from a spill or wear. Software (Filter Keys, wrong layout) can also disable keys, so rule that out first.