Want to lock your folder having important documents without using any third party software??? Try this..............

Go Ahead!! Try it!

Step 1 : Open notepad. 
Step 2 : Copy the following code in notepad which is in text area.

cls
@ECHO OFF
title Folder Secure
if EXIST "Control Panel.{21EC2020-3AEA-1069-A2DD-08002B30309D}" goto UNLOCK
if NOT EXIST Secure 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 Secure "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%== errorcode401 goto FAIL
attrib -h -s "Control Panel.{21EC2020-3AEA-1069-A2DD-08002B30309D}"
ren "Control Panel.{21EC2020-3AEA-1069-A2DD-08002B30309D}" Secure
echo Folder Unlocked successfully
goto End
:FAIL
echo Invalid password
goto end
:MDLOCKER
md Secure
echo Secure created successfully
goto End
:End

Step 3 : Now Save this file with .bat extension. [e.g lock.bat]

Step 4 : Double click on your file [lock.bat]

>>> Now you can see one folder name with "Secure"

Step 5 : Move your personal data in this Folder (Secure)

>>> When you want to lock this folder [secure]. just double click on batch file and you can see one window then type Y and hit Enter.

>>> Now you can see your folder [secure] is hide. when you want to access the data into the folder, then double click on batch file and Enter your password.

[default password is "errorcode401" , If you want to change your password then right click on batch file and Now Find "errorcode401" and replace it with your password. remember your password, because when you want to access this folder password is necessary]

Dont forget to share...... smile emoticon