Computer Keyboard Not Working? Here's How to Fix It

You press a key and nothing happens. Or the wrong character appears. Or some keys work but others don't. Keyboard problems range from a simple fix (cleaning out crumbs) to a hardware replacement, and the fix depends on whether you're dealing with a laptop keyboard, external USB keyboard, or wireless keyboard.

Quick Fixes to Try First

Before diving into diagnostics, try these — they solve about half of keyboard problems:

1. Restart your computer. A frozen driver or stuck process can make the keyboard unresponsive. A full restart (not sleep/wake) clears it
2. Check the connection. For USB keyboards, unplug and replug. Try a different USB port. For wireless keyboards, check batteries and re-pair the receiver
3. Check Num Lock and Filter Keys. Press Num Lock — if your number pad was typing letters instead of numbers, that's the fix. Also check if Filter Keys is on (Settings → Accessibility → Keyboard → Filter Keys should be OFF)
4. Try the On-Screen Keyboard. Press Windows+R, type osk, press Enter. If the on-screen keyboard works but your physical keyboard doesn't, it's a hardware or driver issue, not a Windows problem

Laptop Keyboard Not Working

Some Keys Work, Others Don't

Individual dead keys on a laptop keyboard usually mean physical damage or debris underneath. Try:

• Compressed air: Tilt the laptop at an angle and spray compressed air between the keys to dislodge crumbs or dust
• Key removal (if removable): Some laptop keys can be gently pried off with a thin flathead screwdriver to clean underneath. Look up your specific model — butterfly keyboards (older MacBooks) are fragile and break easily
• Spill damage: If liquid was spilled on the keyboard, even weeks ago, corrosion may be affecting specific key traces. This usually requires keyboard replacement

Entire Keyboard Is Dead

If no laptop keys work at all but the touchpad and power button work:

• Ribbon cable: The keyboard connects to the motherboard via a thin ribbon cable. It can work loose, especially if the laptop was recently opened for repair or dropped. Reseating it often fixes the problem
• Driver issue: Open Device Manager (right-click Start → Device Manager) → Keyboards. If there's a yellow warning icon, right-click and select "Update driver" or "Uninstall device" and restart
• BIOS test: Restart and press F2/Del/F12 to enter BIOS. If the keyboard works in BIOS but not in Windows, it's a software/driver problem. If it doesn't work in BIOS either, it's hardware

Desktop/External Keyboard Not Working

USB Keyboard

• Try a different USB port — preferably one directly on the motherboard (back of the PC), not a front panel or hub port
• Test on another computer — this instantly tells you if the keyboard itself is dead or if it's a computer problem
• Check USB power: If you're using a USB hub, it may not be providing enough power. Try connecting directly
• USB selective suspend: Windows sometimes powers down USB ports to save energy. Go to Power Options → Change plan settings → Change advanced → USB settings → set Selective suspend to Disabled

Wireless Keyboard

• Replace batteries — even if they're "not that old." Low batteries cause intermittent connectivity that looks like random key failures
• Re-pair the receiver: Unplug the USB receiver, wait 10 seconds, plug it back in. For Bluetooth keyboards, remove the device from Bluetooth settings and re-pair from scratch
• Interference: Wireless keyboards (2.4 GHz) can be disrupted by WiFi routers, other wireless devices, or USB 3.0 ports. Move the receiver away from USB 3.0 ports and closer to the keyboard

Typing Wrong Characters

If your keyboard types the wrong characters (pressing one key produces a different letter), check:

• Language/input method: Press Windows+Space to cycle through input methods. You may have accidentally switched from English (US) to another language. Remove languages you don't use from Settings → Time & Language → Language & Region
• Sticky/Filter Keys: These accessibility features change how keys behave. Disable them in Settings → Accessibility → Keyboard

When You Need a Replacement

Hardware failure is the diagnosis when: the keyboard doesn't work in BIOS, individual keys have visible physical damage, or there's corrosion from a liquid spill. Laptop keyboard replacement is a common repair — the keyboard itself costs $15–$50 for most models, and installation takes 20–45 minutes depending on the laptop design.

Keyboard problems are usually either very simple (restart, reconnect, change a setting) or they need physical repair. If the quick fixes above didn't solve it, bring it in — we'll diagnose it for free and quote a flat rate for the fix.