How To Disable USB Port With The Help Of Registry

To set the Start value, follow these

steps:1. Click Start, and then click Run.
2. In the Open box, type regedit, and then click OK.
3. Locate, and then click the following registry key:

HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\UsbStor

4. In the right pane, double-click Start.
5. In the Value data box, type 4, click Hexadecimal (if it is not already
selected), and then click OK.
6. Quit Registry Editor.

Let me know How it worked for you.