How to Lock or Hide forlder without using any application

hide or lock your drives using Diskpart

1. click on the start menu = > run = > then type diskpart
2. to show the list of your volume type => list volume
3. you can see from the screenshots the list of my volume
4. then choose which volume you want type => select volume 0,1,2,3 or simple type the drive name => c:, d:
5. Now Type>remove letter C,D,E,F Whichever U Want only One
6. -Hence Removed -
7. If U Want the Drive Again Back n MY COMPUTER
8. In 4th Step Just Type assign letter whatever you want from A-Z