· Were there any recent changes made on the computer prior to the issue?
· Do you get any error code with error message?
Follow these methods:
I would suggest you to follow Method 3: “Restart the HID Human Interface Service” from this KB article and check if it helps:
If issue persists, you can try performing System File Checker scan on the computer and check if it helps.
Description of Windows XP and Windows Server 2003 System File Checker (Sfc.exe)