In this article, we’ll examine the main reasons why a keyboard stop working on a computer and provide step-by-step instructions to get it functioning again. The keyboard is a critical component of any computer, and its failure can make work nearly impossible. If your keyboard stops responding, the issue could stem from either hardware or software problems.

Possible Reasons Why Your Keyboard Isn’t Working

Connection Issues
The keyboard might be disconnected from its port, or the cable could be damaged.

Hardware Malfunctions
The keyboard itself might be broken, possibly due to liquid spills or physical damage.

Software Glitches
Issues with drivers, viruses, or incorrect system settings could be to blame.

Settings Conflicts
Accidental activation of special modes (e.g., “Sticky Keys”) or a changed keyboard layout might cause problems.

Port Problems
Faulty USB ports or PS/2 connectors could prevent proper operation.

What to Do If Your Keyboard Isn’t Working

Here are several steps to help you diagnose and fix the issue:

1. Check the Connection

For USB Keyboards: Disconnect the keyboard and plug it into a different USB port. Test multiple ports to rule out a faulty one.
For PS/2 Keyboards: Ensure the plug is inserted correctly. These keyboards must be connected while the computer is off, or they may not be recognized.
For Wireless Keyboards: Check the battery level or replace the batteries. Verify that the USB receiver is connected and undamaged. Try resyncing the keyboard with the receiver (often via a “Connect” button).

2. Restart Your Computer

A simple reboot can resolve temporary software glitches. If the keyboard doesn’t work even for logging in, use the on-screen keyboard (Windows: Start → Accessibility → On-Screen Keyboard).

3. Inspect the Hardware

Check the keyboard for physical damage, stuck keys, or signs of liquid spills.
If you have a spare keyboard, connect it to test whether the issue lies with the original device.

4. Check Drivers (Windows)

Open Device Manager (press Win + X → Device Manager).
Locate the “Keyboards” section, right-click your keyboard, and select “Update driver.”
If that doesn’t work, remove the device (right-click → Uninstall) and restart your computer—the system will automatically reinstall the driver.

5. Disable Special Modes

If the keyboard partially works, check if “Sticky Keys” or “Filter Keys” are enabled. Press Shift 5 times to bring up a dialog where you can disable these features.
Ensure Num Lock or Caps Lock isn’t active if specific keys aren’t responding.

6. Check BIOS/UEFI

Restart your computer and enter the BIOS (usually by pressing Del, F2, or Esc during startup). If the keyboard works in BIOS, the issue is likely software-related.
In BIOS, verify that USB keyboard support (Legacy USB Support) is enabled.

7. Scan for Viruses

Use an antivirus program (e.g., Windows Defender) to scan your system. Some malware can interfere with keyboard functionality.

8. Update or Reinstall the System

If the issue started after a Windows update, try rolling back to a previous version or updating to the latest version via Settings → Update & Security.
As a last resort, consider reinstalling the operating system.

9. Seek Professional Help

If none of these steps work, the problem might involve hardware—such as the motherboard, ports, or the keyboard itself. Contact a service center for assistance.

Additional Tips

For a temporary fix, use the on-screen keyboard (Windows: Win + Ctrl + O; Mac: System Preferences → Accessibility → Keyboard → Enable Accessibility Keyboard).
If the keyboard fails only in specific apps, reinstall those programs.

Conclusion

In most cases, Keyboard stop working on a computer can be fixed by checking connections, drivers, or settings. If the issue is due to hardware failure, it’s best to consult a professional. We hope these tips help you quickly restore your keyboard’s functionality and get back to using your computer comfortably!

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