Laptop Keyboard Not Working: Causes and Fixes

First, narrow down what "not working" means

A laptop keyboard can fail in a few different ways, and each points to a different cause. Before trying fixes, notice which of these matches what you're seeing:

• The whole keyboard is dead. Often software, a driver or a connection problem, but sometimes liquid damage.
• Only some keys don't work. Usually debris under the keys, a past spill or physical wear.
• Keys type the wrong characters. Typically a language or layout setting, or Num Lock on some laptops.
• Keys repeat or type on their own. Can be a sticky key, liquid residue or a failing keyboard.
• Keys respond slowly or only when held down. Often an accessibility setting.

Quick software fixes to try first

Restart properly

Save your work and restart, not just sleep and wake. A full restart reloads the keyboard driver and clears stuck processes. On Windows, choose Restart rather than Shut down, since fast startup can carry problems over a shutdown.

Check accessibility settings

On Windows, Filter Keys makes the keyboard ignore brief or repeated keystrokes, which can feel like a broken keyboard. It can be turned on by accident by holding the right Shift key. Check it in Accessibility settings under Keyboard. Also check Sticky Keys. On a Mac, look in Accessibility settings for Slow Keys and Mouse Keys.

Check the language and layout

If keys type the wrong symbols, for example quotes and slashes in odd places, your input language may have changed. Canadian users often have both English and French keyboards installed, and a shortcut can switch between them. Remove layouts you don't use.

Update or reinstall the keyboard driver (Windows)

1. Install pending updates in Windows Update, including optional driver updates.
2. Open Device Manager and expand Keyboards.
3. Right-click the keyboard and choose Uninstall device.
4. Restart. Windows reinstalls the driver automatically.

If the problem started right after an update, check your laptop manufacturer's support page for an updated keyboard or chipset driver.

Test whether it's hardware or software

Two simple tests tell you a lot:

• Plug in an external USB or Bluetooth keyboard. If it works perfectly, Windows or macOS is fine and the problem is in the built-in keyboard or its connection.
• Try the keyboard before the operating system loads. Restart and press the key that opens the BIOS or UEFI setup on Windows laptops (often shown briefly on the startup screen). If you can navigate the setup menu with the built-in keyboard, the hardware is likely working and the issue is software.

Meanwhile, an external keyboard or the on-screen keyboard keeps you working while you sort it out.

Debris and crumbs

When one or two keys stick, feel mushy or don't register, something is often trapped underneath. Try this, gently:

1. Shut down and unplug the laptop.
2. Hold it at an angle, keyboard facing down, and tap the back lightly to let loose crumbs fall out.
3. Use a soft brush between the keys.
4. Wipe around stuck keys with a cloth very lightly dampened with isopropyl alcohol, never dripping.

Don't pry keycaps off unless you know how your model's clips work. On many thin laptops, the clips are tiny and break easily. Avoid blasting compressed air hard into a laptop, which can push debris deeper.

Spills: act fast, then get it checked

Liquid is the most common cause of a keyboard that suddenly stops working, sometimes days after the spill, as residue dries or corrosion spreads.

1. Shut the laptop down immediately and unplug the charger.
2. Turn it upside down in a tent shape so liquid drains away from the inside.
3. Wipe off what you can. Don't use a hair dryer or put it near a heater.
4. Don't power it back on to "test" it. Have it checked first.

Coffee, juice and pop are worse than water because sugar and acid leave sticky, corrosive residue on the keyboard and the board underneath.

When the keyboard needs replacing

If an external keyboard works but the built-in one doesn't, and cleaning hasn't helped, the keyboard or its cable may need replacing. On some laptops, the keyboard is a separate part. On many thin laptops, including MacBooks, it's built into the top case with the palm rest and sometimes the battery, which makes the repair more involved. A technician can identify which type you have and explain what's involved before you decide.

Need a hand?

If your laptop keyboard is still acting up after these checks, or you've had a spill, a certified woman technician can come to your home or workplace to look at it and give you a free quote before any work starts. She confirms timing with you when she quotes. Call or WhatsApp (365) 351-4247, or request a visit online. See computer repair and the areas we serve.

Frequently asked questions

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