Here's the problem. If you don't pop for the hidden $20 charge, you can't password protect this software. So all one has to do is stumble upon the Hide Folders icon, click, open the window, make a note of what's listed, select show, and do a search for those obviously important "hidden" files. At the least, if you use this app, change its name to something else. Hide Folders invites snoopers. And make sure you keep it in a secure place...certainly not your desktop. Maybe on a flash drive. In its "free" form it's surely "use at your own risk".