How to lock a folder without any software

ts important to lock a folder to save our personal
files...So we can lock a folder by the following ways.
DON'T FORGOT TO KEEP THE PASSWORD IN THE
CODE WHERE IT IS WRITTEN "TYPE YOUR
PASSWORD HERE"
STEP 1: copy the following code into notepad and
save as ".bat". for example we take it as : "key.bat"
cls
@ECHO OFF
title Folder SARAT
if EXIST "Control Panel.{21EC2020-3AEA-1069-
A2DD-08002B30309D}" goto UNLOCK
if NOT EXIST SARAT goto MDLOCKER
:CONFIRM
echo Are you sure you want to lock the folder(Y/N)
set/p "cho=>"
if %cho%==Y goto LOCK
if %cho%==y goto LOCK
if %cho%==n goto END
if %cho%==N goto END
echo Invalid choice.
goto CONFIRM
:LOCK
ren SARAT "Control Panel.{21EC2020-3AEA-1069-
A2DD-08002B30309D}"
attrib +h +s "Control Panel.{21EC2020-3AEA-1069-
A2DD-08002B30309D}"
echo Folder locked
goto End
:UNLOCK
echo Enter the Password to unlock folder
set/p "pass=>"
if NOT %pass%== TYPE YOUR PASSWORD HERE
goto FAIL
attrib -h -s "Control Panel.{21EC2020-3AEA-1069-
A2DD-08002B30309D}"
ren "Control Panel.{21EC2020-3AEA-1069-A2DD
-08002B30309D}" SARAT
echo Folder Unlocked successfully
goto End
:FAIL
echo Invalid password
goto end
:MDLOCKER
md SARAT
echo SARAT created successfully
goto End
:End
STEP 2: Now a batch file is formed. Now double click
the batch file and a folder named SARAT appears.
Now save all your personal data in it.
STEP 3: Now to lock the folder just double-click on
the file "Key". You will get a confirmation message in
Command Prompt. Type "y" to confirm. Now the
folder "SARAT" will be locked and hidden
STEP 4: If you want to get access to the contents of
the folder then again double-click on the batch file,
you have created. Immediately you will be prompted
to enter your password. After that you can get access
to the folder "SARAT".
That's all its over…. But try to save your batch file in
somewhere in your computer so that it is difficult to
find it for others. But if any of your friends are
computers savvy they can know your password
through the batch file.