Laptop Keyboard Suddenly Stopped Working (Internal vs External Fixes)

You open your laptop, the screen lights up, the trackpad still works — but every key you press does nothing. No typing, no shortcuts, not even the power-on response from Caps Lock. It's the kind of problem that turns your laptop into a slightly heavy tablet.

Before assuming the worst, know this: most "dead" laptop keyboards aren't actually dead. They're often disabled by a stuck key, a driver glitch, a power state issue, or a setting that got toggled. The trick is to work through the causes in order, from quick software fixes to genuine hardware faults.

First: Quick Triage in 60 Seconds

Before any deep troubleshooting, do these three checks. They solve the issue more often than you'd expect:

1. 1. Force restart. Hold the power button for 10 seconds. Wait. Power on. Many keyboard freezes are stuck driver states that a hard restart clears.
2. 2. Check Caps Lock and Num Lock indicator lights. Press them. Do the lights toggle? If yes, the keyboard hardware is alive — you have a software issue. If no, the keyboard isn't communicating with the OS at all.
3. 3. Plug in an external USB keyboard. If it works, the rest of the laptop (USB, OS, drivers in general) is fine — the fault is isolated to the internal keyboard. This single test saves hours of misdiagnosis.

If the External Keyboard Works (Internal Keyboard Issue)

You've confirmed the laptop and OS are fine. The fault is the internal keyboard. Work through these in order:

1. Reinstall the keyboard driver

1. 1. With the external keyboard plugged in, right-click Start → Device Manager.
2. 2. Expand Keyboards, right-click the internal keyboard (often "Standard PS/2 Keyboard" or "HID Keyboard Device"), select Uninstall device.
3. 3. Restart. Windows reinstalls the driver during boot.

2. Check Filter Keys and accessibility settings

Filter Keys can ignore brief keypresses, making the keyboard appear dead. Open Settings → Accessibility → Keyboard and toggle Filter Keys off.

3. Drain residual power

Many laptop hardware glitches are cleared by a power reset (sometimes called "draining the static"):

1. 1. Shut down completely.
2. 2. Unplug the charger.
3. 3. If the battery is removable, remove it.
4. 4. Hold the power button for 30 seconds.
5. 5. Reattach battery, plug in, power on.

On Macs, this is the SMC reset (Intel) or similar. Modern Apple Silicon Macs handle this automatically.

4. Check for a stuck or trapped key

A single key stuck down can lock up the entire keyboard buffer. Look across the keyboard for any key sitting visibly lower than its neighbours, or any key that feels mushy. If you find one, see our guide to fixing sticky keys without disassembly.

5. Look for ribbon cable issues (advanced)

Inside the laptop, the keyboard connects to the motherboard via a thin ribbon cable. If this cable has worked loose — usually after a drop, repair, or several years of opening/closing the lid — the keyboard goes completely dead while everything else works fine. This is one of the most common physical causes of "suddenly stopped working" reports.

Reseating this cable is straightforward for technicians but requires opening the laptop and isn't recommended for everyone. Most authorised repair shops can do it inexpensively. Don't try it yourself unless you're comfortable with laptop disassembly — you can damage the cable irreversibly with the wrong tools.

If the External Keyboard Also Doesn't Work (System Issue)

The fault isn't the keyboard — it's the OS or drivers. Try these:

• Boot in Safe Mode. If the keyboard works in Safe Mode but not normally, a third-party driver or startup program is interfering.
• System Restore. Roll back to a point before the issue started.
• Recent Windows update? Some updates have broken HID input. Check for a newer cumulative update or roll back the latest one.
• Run SFC and DISM in an elevated Command Prompt: sfc /scannow and DISM /Online /Cleanup-Image /RestoreHealth.

If Only Some Keys Work (Partial Failure)

A partial failure — some keys dead, some alive — is a different problem. It usually means the keyboard membrane has localised damage, or specific switches have failed. Our guide to keyboard keys not working walks through that scenario in detail.

If a liquid spill happened recently, that's almost certainly the cause — read our spilled water emergency guide first.

Repair vs. Replace: What to Do Long-Term

Once you've confirmed it's a hardware fault on the internal keyboard, you have three options: