Disable USB Storage by editing the Windows registry

In certain environments, it can be useful to disable the Windows USB storage driver to prevent end-users from using USB devices to copy data from the system.

You can do this easily by modifying the Windows registry.

Click Start, and run regedit

Navigate to HKEY_LOCAL_MACHINESystemCurrentControlSetServicesUSBStor

and set the Start value to 4.

The default of 3 is shown in the screenshot below.