How to disable restrict USB/Flash Drive in Windows 7 or if ur not able to connect Your usb or other things.

How to disable restrict USB/Flash Drive in Windows 7

Recently one of my friend asked me how a USB drive can be disabled on a
particular computer. So it‟s a pretty much Registry Tweak.

To disable the access to USB port, in windows XP, Vista and Windows 7:

1. Click Start, and then click Run.

2. Type regedit, and then click OK. (Or simply open registry)

3. Navigate to 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, change its value to 4, which was 3 and then click

OK.

To re-enable a disabled port:

1. Click Start, and then click Run.
2. Type regedit, and then click OK. (Or simply open registry)
3. Navigate to 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, change its value to 3, which you changed to 4
to disable the USB drive and then click OK.
6. Quit Registry Editor.

Now whenever a user will attach a USB storage device which is already
installed in system, Windows will not detect it and it‟ll not be shown in My
Computer. However, disabling USB ports totally also disables the ability for
Windows to use USB based keyboard, mouse, webcam, printer, scanner and
etc., which are common devices for a computer nowadays and essential
ones as well.