Hai friends
I am back with new trick



STEPS TO FOLLOW
1.open command line:TYPE diskpart

2.run as diskpart prgm

3.Type "list volume".

4.select volume n(where n is volume number)

Before removing my drives are three 

5."remove letter x"(x is the drive name).

6.Now go to MY COMPUTER and watch number of drives

7."assign letter x"(To get it back)

ENJOY NOW FRNDS CAN'T WATCH UR DRIVES:)