A laptop keyboard failing partially or completely happens more often than you'd think. Before assuming you need a full keyboard replacement, there are a few things worth checking.
First: is it hardware or software?
Plug in an external USB keyboard. If the external one works and the built-in one doesn't, it's a physical problem. If the external keyboard doesn't work either, the issue may be drivers or the motherboard.
Common causes and fixes
1. Keys stuck from dirt or a spill
If you spilled something on the laptop, switch it off immediately, remove the battery if possible, and turn it upside down to drain. Bring it in as soon as you can for cleaning and diagnosis.
2. Corrupted keyboard driver
In Device Manager (right-click the Windows button → Device Manager → Keyboards), uninstall the keyboard driver and restart. Windows will reinstall it automatically. This trick fixes many cases of an erratic keyboard.
3. Fn key or keyboard lock enabled
On some laptops, the Fn+F1 to F12 combination changes what certain keys do. If only function keys or the numeric block are affected, check whether Num Lock or Fn Lock is switched on.
4. A loose keyboard connector cable
The keyboard connects to the motherboard via a thin flexible ribbon cable. A knock can loosen it. Reseating it properly often fixes the problem with no parts needed.
5. Physical keyboard damage
If a key's scissor mechanism is broken, or the rubber contact underneath has worn out, the whole keyboard needs replacing.
How much does a laptop keyboard replacement cost?
Keyboards range from €20-30 for common models up to €100 or more for premium laptops. We give you an exact quote for your specific model.
Can I use the laptop in the meantime?
Yes. An external USB keyboard is a perfect temporary fix. If it's just one or two keys, Windows' on-screen keyboard ("search for On-Screen Keyboard") also works.