hide/unhide a drive-partition from console

this tweak is particularly for windows systems and has been personally tested by me on XP ,Vista and Windows 7.its pretty simple yet interesting.this mischief if done on other's computer, can drive the computer owner nuts to figure it out.there is nothing to be afraid to try this as it is just temporary hiding of a partition while all its contents remain the same.(still i'l recommend you to not to try this on a partition in which you have installed applications).

Steps:-
1.Go to Start-----Run------type "diskpart"
(and hit the enter/return key)This will open a console window in which you can use various diskpart utilities with the help of commands[here you can enter "help" and find more about diskpart commands. to know even more about a particular command enter "help ". i.e. "help format"]

2.type "list volume"
and hit enter/return. this will give details of all drives present on your computer.

3.type "select volume [vol_number] "
(for example if my partition(H:) has got a volume_number=3, then to hide this partition i have to first select it typing "select volume 3")

4.finally type "remove letter [vol_letter] "
(as for example "remove letter H").now if we close the console window and restart the computer that particular drive-partition wouldn't appear

Now to unhide the partition

follow steps 1 to 3 as mentioned before to select a partition/volume (as for here it would be the volume that we have hidden earlier). then step 4 will be:

4.type "assign letter [drive_letter]"
example "assign letter M". this will make the partition reappear but with letter M:\ this time.it could have been earlier drive_alphabet too.

[ notice that this tweak can be effectively used to change drive-alphabet too ]