MAKE A PASSWORD PROTECTED FOLDER

Here is a simple trick to do this Just Right click on the folder you want to protect with password.
Select send to->-compressed folder
A new compressed zipped folder will create next to this folder with the same name.
Then Double-click on this compressed folder and you will see your original folder in this compressed folder.
Now go to the File menu and select the option add a password.
There you can set your desired password.

Enjoy!