DirLock will not only protect your folders with a password, but it will hide them in a safe place in your computer nobody will be able to find. It's one of the best ones when it comes to security aids. Nothing can go through it and it will start working for you immediately.
Just by following the installation instructions, the program will be ready for you to start protecting your information. It has an accessible interface and very powerful multi option menus.
Between its advanced features it includes tools to create complex passwords or partitions in your machine to hide your documents.
This is completely free and you should try it now!