How to Fix a Keyboard That’s Not Working

Why Is My Keyboard Not Working?

A keyboard stops working when the key signal cannot reach Windows, either because the physical connection is broken or because software blocks or misreads the input. The four groups below cover almost every case, ordered from the most common.

Less common causes include a Fast Startup glitch that leaves the driver uninitialized after shutdown, debris under specific keys, and a hardware fault such as a broken cable or, on a laptop, a loose internal ribbon cable. The fixes below work through these in order.

How Do You Fix a Keyboard That Is Not Working?

Work through these fixes in order and test the keyboard after each one, because a single connection, battery, or driver fault usually accounts for the failure.

• Try another USB port and reconnect. Unplug the keyboard and plug it into a different port directly on the computer, not a hub. On a desktop, move from a front-panel port to a rear port wired straight to the motherboard. If it works on a second computer, the original port is the fault.
• Replace the batteries and re-pair a wireless keyboard. Fit fresh batteries, set the power switch to On, and reseat the USB dongle in a port close to the keyboard. For Bluetooth, remove the keyboard in Settings under Bluetooth and devices, then add it again. Keep the dongle away from USB 3.0 ports that swamp the 2.4GHz signal.
• Reinstall the driver in Device Manager. Right-click Start, open Device Manager, expand Keyboards, right-click the keyboard, and select Uninstall device. Restart, and Windows reinstalls a standard driver during boot. If it still fails, use Update driver to fetch the maker driver.
• Test the keyboard in BIOS. Restart and press the BIOS or UEFI key (often Del, F2, or F10) before Windows loads. If the keys work there but not in Windows, the problem is software, not the keyboard, so focus on the driver and settings.
• Disable Filter Keys. Open Settings, select Accessibility, then Keyboard, and set Filter Keys to Off. Also turn off the right-Shift shortcut so it cannot switch on again by accident.
• Use the on-screen keyboard meanwhile. Open Settings, Accessibility, Keyboard, and turn on the On-screen keyboard so you can keep typing with the mouse while you finish the other fixes or order a replacement.

A wireless keyboard depends on fresh batteries and an intact pairing, so battery and link checks resolve most wireless failures before any driver work is needed. The trade-offs between connection types are explained in the comparison of wired and wireless peripherals.

Reinstall the Keyboard Driver in Device Manager

Reinstalling the driver replaces a corrupted copy that stops Windows reading key presses, and Windows fits a fresh standard driver automatically after a restart.

1. Right-click Start and open Device Manager.
2. Expand the Keyboards section to list every connected keyboard.
3. Right-click the affected keyboard and select Uninstall device, then confirm.
4. Restart the computer and let Windows detect the keyboard and reinstall the driver during startup.
5. If it still fails, open Device Manager again, right-click the keyboard, and select Update driver to install the manufacturer driver.

A keyboard with extra macro or media keys needs the maker software, such as Logitech G HUB or Razer Synapse, for those keys to work. If the keyboard sleeps and will not wake, also disable USB selective suspend under the power plan so Windows stops cutting power to the port.

Turn Off Filter Keys and Check the Layout

Filter Keys makes a working keyboard appear dead by ignoring brief presses, while the wrong layout makes it type the wrong characters. Both are software settings, not hardware faults.

1. Open Windows Settings, select Accessibility, then Keyboard.
2. Set the Filter Keys toggle to Off, and turn off the shortcut that enables it with a held right Shift key.
3. Open Time and language, then Language and region, and confirm the layout matches your physical keyboard.
4. Remove an extra layout added by mistake, such as US International when US is intended.
5. Press the Windows key and Spacebar to switch input method, then type quotation marks and the @ symbol to confirm the layout is right.

A keyboard that swaps the @ and ” symbols is set to the wrong regional layout, not broken. If the keyboard works only after a full restart and not after a shutdown, disable Fast Startup in the Control Panel power options to stop the hybrid shutdown leaving the driver uninitialized.

Test the On-Screen Keyboard to Isolate Hardware From Software

The on-screen keyboard confirms whether Windows itself accepts keyboard input, separating a hardware fault from a software one, and it doubles as a stopgap so you can keep typing.

1. Open Windows Settings, select Accessibility, then Keyboard, and turn on the On-screen keyboard.
2. Click keys with the mouse to type into a text field and confirm the characters appear.
3. Treat working on-screen input with a dead physical keyboard as a hardware or driver fault in the keyboard.
4. Treat failing on-screen input as a system-level fault that needs an SFC or DISM scan or a new user account.
5. Keep the on-screen keyboard open to log in, search, or order a replacement while you finish troubleshooting.

Clean Debris From Under the Keys

Removing dust, crumbs, and dried liquid from under the keys restores individual keys that have stopped responding, because debris blocks the switch contact beneath a keycap.

• Power down and unplug the keyboard first. Disconnect a wired keyboard or switch off a wireless keyboard before cleaning.
• Use compressed air across the keys. Hold the keyboard at an angle and blow short bursts to dislodge loose debris.
• Lift keycaps on a mechanical keyboard. Use a keycap puller to clear debris under specific non-working keys.
• Clean sticky keys with isopropyl alcohol. Apply 90 percent or higher isopropyl alcohol on a swab to dissolve dried liquid around the switch.

A keyboard that suffered a large liquid spill needs full disassembly or replacement, because liquid corrodes the circuit board and switch contacts over time. On a laptop, a single dead row or block of keys after a knock often points to a loose internal ribbon cable rather than the switches.

Keyboard Symptoms and Their Causes

Last Thoughts on a Keyboard That Is Not Working

A keyboard that is not working is almost always fixed by checking the connection or batteries first, then moving through the driver, BIOS test, Filter Keys, layout, and on-screen keyboard checks in order. A wired keyboard depends on a working USB port and cable, while a wireless keyboard depends on fresh batteries and an intact pairing, so reconnecting hardware resolves most cases before any deeper work. The BIOS test is the key discriminator: keys that register there but not in Windows point straight at software.

When the keyboard is one of several dead input devices, the steps to fix a mouse that is not working and to resolve a USB device not recognized apply to the shared connection, and the same logic covers a webcam that is not working. A full index of input and hardware faults sits in the hub of common PC problems.

Key Takeaways:

• Try another USB port and reconnect first, and on a wireless keyboard replace the batteries and confirm the power switch is on.
• Re-pair a wireless keyboard by reseating the 2.4GHz dongle or removing and re-adding it under Bluetooth, away from USB 3.0 ports.
• Reinstall the keyboard driver in Device Manager when a dead keyboard still works in BIOS.
• Test the keyboard in BIOS to tell a hardware fault from a Windows one before replacing anything.
• Turn off Filter Keys for ignored or laggy presses, and fix the layout when the wrong characters appear.
• Use the on-screen keyboard as a stopgap so you can keep typing while you work through the fixes.

Frequently Asked Questions (FAQs)