4. double click photothumb.bat it will create a new folder called Locker automatically.

5. Place the contents inside and double click photothumb.bat, it will ask whether you want to lock. Say Y and now your folder will disappear.

To view again, double click photothumb.bat again and enter your password.

Note: This trick is only to provide Privacy, so that nobody accidentally opens your private folders. It does not provide any ultimate security. Anybody can open XYZ.bat in any text editor and view the code. As I had mentioned it before try to keep this file in not an obvious place with a name that looks like a system file, so that nobody will have a chance to touch or doubt at this file.
source- lytebyte