How to guard folder without password and software

In this way one can protect folder from many users but it is not an rigid one. As everybody can change if he knows the procedure.

First select a folder

Rename the folder with following code “.{21EC2020-3AEA-1069-A2DD-08002B30309D}”

 You will see the appearance of the folder changed and it will take control panel appearance.

Now if you click on the folder you will be redirected to the control panel.

But still now you can access this folder from control panel.

For general access you just have to rename it in command prompt window. Just remove the dot(.) from folder name.