Folder Lock Free - Version 1.0.0.1 Folder Lock Free can password protect a folder file or any documents, videos, images that you need to lock. Simply drag-n-drop the data to be hidden to the main security window. Directories and files will be hidden immediately and secured with a password. Folder Lock free is freeware software. Download it and find out how to hide a folder the easy way. Prevent access to a directory or file on Windows 7, Vista & XP. No crack, serial or key needed. You can have the app automatically lock or unlock all your confidential data upon entering your password or closing the software program.