AB Hide Folder - Version 5.03 AB Hide Folder is a powerful file lock software that can password protect your personal files and folders. You can use AB Hide Folder to stop other users from opening your personal files, or you can completely hide your files until a password is entered. AB Hide Folder can lock the files and folders in a second even if GBs of data is to be locked. It is very useful to keep your sensitive files away from others.