There is a problem with this application because it seems that it's buggy. This means that when you lock a folder, even if you know the password, the folder remains unlocked when the unlock operation is started. I would like to advise you to remove the application from your computer and use another one that actually works. Access the database of Software Informer and look for high rated applications. You can use one from the list to lock your files with the possibility to unlock them back.