Usb disable principle
Click "start, run", enter the "regedit" command in the run dialog box, enter, pop up Registry Editor, expand "HKEY_LOCAL_MACHINE\ SYSTEM\ CurrentControlSet\ Services\ USBSTOR", find the "Start" key, double-click to open it, change its value to "2", click the "OK" button, and restart the system.
The key "Start" is the working switch of the USB device. The default setting is "3" for manual, "2" for automatic, and "4" for deactivation.
