Hide u r derive

step 1> In the run box, type "diskpart" and enter
step 2> type "list volume". it will show you the harddisk partitions.
step 3> now select the volume you want to hide .eg: type "select volume2"
step 4>now type "remove letter e" .it will remove the drive E.

if u want to unhide your drive repeat steps till step no 3 and type "assign letter e" and enter
you will see your drive again....