how to protect folder with password without any extra software

How to Create a Password Protected Folder (windows 7 , 8 and xp)

How to Create a Password Protected Folder whitout any extra software

the code:

cls 
@ECHO OFF 
title Folder Private 
if EXIST "HTG Locker" goto UNLOCK 
if NOT EXIST Private 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 Private "HTG Locker" 
attrib +h +s "HTG Locker" 
echo Folder locked 
goto End 
:UNLOCK 
echo Enter password to unlock folder 
set/p "pass=>" 
if NOT %pass%== PASSWORD_GOES_HERE goto FAIL 
attrib -h -s "HTG Locker" 
ren "HTG Locker" Private 
echo Folder Unlocked successfully 
goto End 
:FAIL 
echo Invalid password 
goto end 
:MDLOCKER 
md Private 
echo Private created successfully 
goto End 
:End