• Open the Registry Editor (Start -> Run -> type regedit)
  • In left pane of Registry Editor, go to
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\USBSTOR


  • Right Click Start and Click Modify on right pane of Registry Editor.
  • Do one of the following:
    • To enable USB ports: change the value from 4 to 3
    • To disable USB ports: change the Value from 3 to 4
  • Restart