BEST CHOICE: I-Lock is FREE, with award-winning on-the-fly folder protection technology. It protects any folder instanly. Lots of Extra privacy tools, Cookie, History, URL, Wipers, etc. It has the perfect combination of speed and security. It locks GB\'s of data or thousands of files in a second! Just drag n drop your files, It is done! Now your files cannot be renamed, deleted, or seen by others.Only you can reach them with your password.