Disable/enable the usage of USB storage devices

USB drives are indeed very useful in these days but a user can easily use to transfer any confidential information from your computer to others and can also upload viruses affected files to your computer by accidentally or deliberately. But you can prevent the users to connect any USB drives in the computer by disabling the ability of "usbstor.sys" (USB driver) to load in system.

Perform the following steps to block the USB storage devices:

1. First click on Start button to open "Run" and type "regedit" then press Ok button to open the Registry Editor.

2. In registry editor locate the given path: HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\USBSTOR.

3. Select the "USBSTOR" folder and in right side of the registry editor panel find the value with name "Start".

4. Double click on "Start" and then set its value 4 under "Value data" section

5. Close the Registry editor and restart your computer for changes to apply.

To restore default settings :

1. Open the Registry Editor and set its value back to 3.


2. Now again close the Registry editor and restart your computer for changes to apply