How to Lock windows folders without any software

We are assuming that the name of the folder to be renamed is HideMePlease and it is located in D Drive, thereby making the path to the folder as

Disc D:\

Step I

The trick is pretty simple, If you rename the folder ( in our case
HideMePlease) to HideMePlease.{21EC2020-3AEA-1069-A2DD-08002B30309D}
When this renaming of the folder is done, windows by default makes
it point to the control panel. Upon clicking on the folder after
renaming, Control Panel is displayed.
To get your folder back to the original one, rename it back to HideMePlease.

In order to make the entire process simple and clean,
i would suggest that you make two batch files (files ending with .bat
extension). One file for hiding/locking the folder; the other for
getting it back/unlocking it.
Step II

1.) The batch file for hiding the folder can be named as:
Hide.bat
2.) Open notepad/your favorite text editor and type in this
//THIS FILE SHOULD BE PLACED IN d:\
REN HideMePlease HideMePlease.{21EC2020-3AEA-1069-A2DD-08002B30309D}
Step III

1.) The batch file for unlocking the folder can be named as
Recover.bat
2.) Open notepad/your favorite text editor and type in this
//THIS FILE SHOULD BE PLACED IN D:\
REN HideMePlease.{21EC2020-3AEA-1069-A2DD-08002B30309D} HideMePlease
IT IS A VERY GOOD TRICK AND WOULD COME HANDY WHEN YOU HAVE TO HIDE YOUR PERSONAL INFO FROM OTHERS!