How to disable displaying drives in my computer

This tricks is very easy.You can make someone wonder.After this hack if some one opens my computer they will not see any drive in my computer.
Follow these steps.

Step 1: Open Registry Editor by typing "regedit.exe" in Run or in
            command prompt

Step 2: Navigate to this.
             registry entry HKEY_CURRENT_USER\Software\Microsoft\
             Windows\ CurrentVersion\Policies\Explorer 

Step 3: Create a new DWORD item by rightclicking and new->dword

Step 4: Now modify it's value by double clicking it and set it to 3FFFFFF

Step 5:  After that restart you computer.Now you will see,no drives
             in my computer

Step 6: To enable the drives in My Computer.just go that path and
            delete file what u made.
            (HKEY_CURRENT_USER\Software\ Microsoft\Windows\
            CurrentVersion\Policies\Explorer and selecting the NoDrives
             and deleting it..del key...).

Step 7: Again restart the computer. you will see drives.

Enjoy it.