how to fix keyboard keys not working

To fix keyboard keys that are not working, start by identifying if the issue is software-related or hardware-related by restarting your computer and testing the keys.

Follow these targeted troubleshooting steps in order to pinpoint and fix the problem.

1. Disable Filter Keys & Sticky Keys (Most Common Windows Fix)

An accidental setting toggle is the most common reason specific keys suddenly stop responding or require you to hold them down.

• Open Settings (Press Win + I or use the Windows On-Screen Keyboard if needed).
• Navigate to Accessibility (or Ease of Access) > Keyboard.
• Locate Filter Keys and Sticky Keys and toggle them both Off.

1. Reinstall the Keyboard Driver

Corrupted drivers can cause specific keys to lose communication with your operating system.

• Right-click the Windows Start button and select Device Manager.
• Click the arrow next to Keyboards to expand the list.
• Right-click your keyboard (e.g., Standard PS/2 Keyboard) and select Uninstall device. Confirm any prompts.
• Restart your PC. Windows will automatically reinstall a fresh copy of the driver when it boots back up.

1. Clear Out Physical Debris

If only one or two keys are failing, dirt, crumbs, or dust may be physically blocking the switch under the keycap.

• Unplug your keyboard (or turn off your laptop).
• Tilt the keyboard at an angle and use a can of compressed air to blow out debris from beneath the problematic keys.
• If you use a mechanical keyboard, safely remove the individual keycap using a keycap puller to clean the switch directly.

1. Check the Hardware in the BIOS (Laptop Users)

To definitively prove if your keyboard is physically broken or just experiencing a Windows glitch, test it outside of the operating system.

• Shut down your laptop completely.
• Turn it back on and immediately repeatedly tap the BIOS key (usually F2, Delete, or Esc depending on your brand).
• Try using your arrow keys to navigate the menus.
• If they work here: The issue is completely caused by Windows software.
• If they do not work here: The keyboard hardware itself is damaged or disconnected and likely needs to be replaced.

1. Perform a Hardware Power Drain

Residual static electricity in a laptop or motherboard can sometimes freeze external or internal hardware inputs.

• Shut down your device and unplug the charger.
• If your laptop has a removable battery, pop it out.
• Press and hold the Power Button down for 30 to 60 seconds.
• Plug the power back in, boot up, and test the keys again.