Instead of password protecting folders, the file hiding software makes the folders completely invisible.

With Supreme Folder Hider you can..

Hide files and folders and other important information
Prevent all file access - Folders are removed from Windows Explorer entirely
Hide pictures, hide data, hide work with a click!
Be the only one to access your hidden files or folders
Make sure that files within folders can't be accessed from anywhere, including the command prompt
Files will not show up during searches
Files can't be accessed from shortcuts and recent document lists
Run at Windows startup
Run in stealth mode which doesn't allow it to show up
Use Hotkeys for hiding all folders
Use Hotkeys for showing all folders
Password protect files with hotkeys
Password protect files upon programs start
Add any number of folders may be added for quick hiding

Home Page: http://filehidingsoftware.com/