Block USB Devices.

Have you get computer on you’re school can’t read the USB Drive like Mass Storage? Is that the USB can be blocked and then stopping the use of USB drives. Off course we can do it, in just 4 easy click. Here is a simple registry hack to do so, try it with care. :)

1. Go to Start –> Run, type Regedit.
2. Go to Hkey_Local_Machine\System\CurrentControlset\Services\USBStor
3. In the right pane, look for value Start and have value as 0000000(3)
4. Double click on that and change that value to 4.

You might be required to restart the PC, and then you are done with it, USB is now blocked.
In case if you want to get the USB unblocked, just change the value again to 3.