Want to lock and hide some of your private and confidential files? Here's one great tool to do just that. The method used is also very secure as reviewed by CNET staff.
1) During installation, it will prompt for your password and folder location (you can only lock one folder in your PC)
2) After installation is complete, you're folder will be locked. To access it, either run the program from start menu, or just press Ctrl + Shift + P (you can keyboard shortcut in the program settings).
3) You may lock/unlock the folder, or change the folder destination here.
Not only it locks the folder, it hides it from view as well so it's like it never existed. =)