How to Hide all drives of computer!!!

Hi friends! You can hide all drives from MY COMPUTER. You can do this to prank your friends.
To hide the drives of your computer you need to follow this simple trick-

1.Go to start then Click run.
Type regedit.
Now navigate to:

HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer


Now in the right pane, create a new DWORD item and name it NoDrives (it is case sensitive).
Now modify it's value and set it to 3FFFFFF (Hexadecimal).

Now restart your computer.

Click on My Computer, no drives will be shown.

To display all the drives back in My Computer, simply delete the DWORD item that you created.
Again restart your computer and all the drives will be back.