We know that, window does not allow me to make a Nameless folder. So by this trick, we can make a folder nameless.
1. Make a New Folder on desktop/ select any folder which you want to hide.
2. Then Right click on folder either on New Folder/on Selected folder.
3. Then Click on Rename.
4. Then erase the name showing "New folder"
5. Now press [ ALT + 255 ], If you are using laptop then, Numlock should be ON.
6. And then press Enter.done