How to Troubleshoot a Computer Keyboard

The keyboard is one of the most vital components of the computer's operating system. However, the keyboard may not always function because of installation errors, defectiveness or dust. If your keyboard is malfunctioning, troubleshoot it before calling for service or replacing it.

Instructions

1. Power off your computer before troubleshooting. Verify that the keyboard is securely plugged in to your computer. Try another PS/2 or USB port if your computer has more than one, or try the connections on another computer, if applicable. If the keyboard still doesn't work, then it may be defective and needs to be replaced.

2. Confirm that the driver software was installed correctly. Some keyboards, especially if they're wireless, require drivers in order to function properly. Follow the instructions to install any software that came with the keyboard.

3. Update the driver for your keyboard, if necessary. Open the control panel on your computer, check the hardware settings and then follow the commands to update the driver.

4. Turn the keyboard upside down to remove any dust, debris or food crumbs. These particles can also prevent the keyboard from working properly. Clean out hard-to-reach areas of the keyboard with an air compressor or a "static-safe" vacuum cleaner.

5. Fix the keyboard layout if the characters on screen don't match what you type. Select an input language on your computer, then choose the keyboard layout that matches that language.

Tips & Warnings

• Turn the keyboard upside down immediately if you accidentally spill liquid on it. Allow the liquid to drain out, then mop it up. Make sure the keyboard is dried thoroughly before attempting to use it.

• Never disassemble the keyboard while troubleshooting. Doing so can cause further damage, and you may lose out on your exchange warranty.