Cause: If your keyboard does not respond at all, there is a communication problem between the keyboard and your computer, and a few possible explanations.
Try these solutions:
1. Check the connection on the keyboard port. The keyboard may not be plugged in. If your keyboard has worked previously, this most often is the cause of the problem. Just plug the keyboard in securely, and the keyboard should start working.
2. If the keyboard is plugged in correctly but still not working, reboot your computer and see if Windows XP can redetect and install it.
3. If this does not work, you may need to get a keyboard driver from the keyboard manufacturer or get technical support help to solve the problem.
Note: Keep in mind that you cannot install new hardware unless you are logged on with an administrator account.