What to Do When Your Keyboard or Mouse Stops Working

A malfunctioning keyboard or mouse can completely halt your workflow and be incredibly frustrating. Whether it’s a wired or wireless device, problems can range from simple connection issues to driver or hardware failures. This guide provides step-by-step solutions to troubleshoot and fix a keyboard or mouse that stops working.

Step 1: Check Physical Connections

For Wired Devices

Ensure the USB or PS/2 connector is properly plugged into the correct port.
Try a different port on your computer to rule out port failure.
Inspect cables for visible damage.

For Wireless Devices

Check the battery level and replace batteries if needed.
Ensure the USB dongle or receiver is securely connected.
Re-pair the device with your computer if it’s Bluetooth-enabled.

Step 2: Restart Your Computer

Sometimes, a simple restart can resolve temporary software glitches.
Restarting refreshes system drivers and clears memory conflicts that may be causing the device to stop working.

Step 3: Test on Another Computer

Connect the keyboard or mouse to a different PC to verify if the device itself is faulty.
If it works on another system, the issue is likely with your computer’s software or settings.

Step 4: Update or Reinstall Drivers

Outdated or corrupted drivers can prevent devices from functioning properly:

Windows:
1. Press Windows + X → Device Manager.
2. Expand Keyboards or Mice and other pointing devices.
3. Right-click the device → Update driver.
4. If that doesn’t work, select Uninstall device, then restart your computer.
Mac:
- Ensure macOS is updated, as drivers are included in system updates.
- Re-pair Bluetooth devices if needed.

Step 5: Check Device Settings

Keyboard: Go to Settings → Ease of Access → Keyboard and ensure features like Sticky Keys or Filter Keys are not interfering.
Mouse: Go to Settings → Devices → Mouse and check pointer speed and button configuration.
Reset settings to default if unsure.

Step 6: Scan for Malware

Malware can interfere with input devices:

Run a full system scan using Windows Defender or a trusted antivirus program.
Remove any detected threats and restart your computer.

Step 7: Disable Conflicting Software

Third-party programs that manage keyboards, mice, or gaming peripherals can sometimes conflict.
Temporarily disable or uninstall such software to see if functionality returns.

Step 8: Replace Faulty Hardware

If the device fails all troubleshooting steps:

Consider replacing the keyboard or mouse.
For laptops, an external USB keyboard can be a temporary workaround if the built-in keyboard is faulty.
For wireless devices, check if a replacement receiver or new batteries solve the problem.

Step 9: Advanced Solutions (Optional)

BIOS/UEFI Check: Boot into BIOS/UEFI to see if the keyboard works outside Windows.
- If it works in BIOS, the issue is software-related.
System Restore: Roll back Windows to a previous state when the devices were functioning properly.
Operating System Repair: Use Windows Repair tools or reinstall the OS if the issue persists and affects multiple devices.

Preventing Future Keyboard and Mouse Issues

Avoid spilling liquids on keyboards and mice.
Keep devices clean and free from dust or debris.
Update drivers and system software regularly.
Use surge protectors to prevent damage from power spikes.
Replace worn-out devices proactively.

Conclusion

A non-functioning keyboard or mouse can often be resolved with simple troubleshooting steps, including checking connections, restarting, updating drivers, testing hardware, and scanning for malware. By systematically diagnosing the problem, you can restore functionality and prevent future issues.

Regular maintenance, careful handling, and timely updates ensure your input devices remain reliable, responsive, and ready for work or gaming.

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