How to lock a folder without any software

Welcome to Asim Arif Blog.Today we will discuss how to lock a folder without any software.
There are many ways to lock a folder but this one is cool and without a software.
Lets Get Started
1) First of all open Command promt(Cmd).
2)Now type the following command there.
                   cd desktop
3) After typing this command.Now Type this command
                   cacls foldername /p everyone:n
4) Then this message will appear
          "Are you Sure(Y/N)?
5) Type Y
6) Now your folder has been locked.
                                   How to Unlock Folder?
Now i will teach you how to unlock this folder.
1)Right click on the folder and click on properties.
2) Now click on the security Tab.
3) Then Click on Advanced.
4) In the permission entries tab select "Everyone".
5)Then Click on Remove.
6) Now the folder has been unlocked.
               For Better Understanding Watch this Video.