very good to security you files.
I used PGP desktop to make ENCRYPTED VIRTUAL DRIVER ( E.V.D).
Note: PGP desktop is not a freeware you need to buy the software
After you instal the PGP desktop duble click to open the main window
Step 1: E.V.D file
the PGP desktop will mount the image file for you after you crate the pgp disk file
but if don't just double click to open ou left click to menu.