This article provides information on how to troubleshoot wired keyboard or mouse issues.

Instructions

Basic Physical Checks (Start Here)
o   These eliminate the most common causes.
o   Unplug and reconnect the keyboard and mouse
o   Use direct motherboard USB ports (rear ports on a desktop)
o   Avoid USB hubs or docking stations during testing
o   Try different USB ports
o   If both devices fail on all ports, suspect system/driver/BIOS
o   If only one port fails, likely a bad USB port
o   Check cables
o   Look for fraying, bent connectors, or loose USB ends
o   Test on another computer
o   If they don’t work elsewhere → faulty keyboard/mouse
o   If they work elsewhere → issue is the original computer
o   If either device works on another PC, continue below.
Hard Reset / Power Drain
Useful for laptops and desktops with USB issues.
Desktop
o   Shut down
o   Unplug power cable
o   Hold power button for 15–20 seconds
o   Reconnect power and boot
Laptop
o   Shut down
o   Unplug charger
o   Remove battery (if removable)
o   Hold power button 15–20 seconds, then power back on again