If you want the tool to request the master key only when you're trying to lock files, then tick the Ask Master Password for 'Lock Files' only box. Master PasswordĪfter firing up Folder Lock, you can Set a Master Password that will be required every time you want to access the application. Scroll down to the end of this article to play our video guide. It has a surprisingly rich set of practical options wrapped in an intuitive interface. We're breaking down Folder Lock in the following guide to show you how it works. It can lock and hide files and folders, deny access to drives, as well as create lockers as virtual drives for storing information in a secure environment, even on USB flash drives. Folder Lock is a professional security application that uses 256-bit AES encryption to protect your data with passwords.