MAKE INVISIBLE FOLDER.

First of all create a new folder.

Right click on it and go to rename, press space,

holding ALT key press 0160 and press Enter.

Now you have a folder with no name.

Now right click on the folder ► Properties ► Customize ► Change Icon

Scroll until you find some empty space icons, choose any one of them and apply.

That's it!! you got your invisible folder.