How to Lock Folder Through Command

Step 1.
1. Press Win+R in your keyboard (To bring Run command tool)
2. Then type: Notepad
3. Press enter.

Step 2.
You will see notepad
Now type the Codes/Command.

Step 3.
SO THE CODES ARE HERE:
cls
@ECHO OFF
title Folder Locker
if EXIST "Control Panel.{21EC2020-3AEA-1069-A2DD-08002B30309D}" goto UNLOCK
if NOT EXIST secured goto MDLOCKER
:CONFIRM
echo Are you sure u want to Lock the secured(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 secured "Control Panel.{21EC2020-3AEA-1069-A2DD-08002B30309D}"
attrib +h +s +r +i "Control Panel.{21EC2020-3AEA-1069-A2DD-08002B30309D}"
echo secured locked
goto End
:UNLOCK
echo put in the key to Unlock the lock
set/p "pass=>password"
if NOT %pass%==123456 goto FAIL
attrib -h -s "Control Panel.{21EC2020-3AEA-1069-A2DD-08002B30309D}"
ren "Control Panel.{21EC2020-3AEA-1069-A2DD-08002B30309D}" secured
echo secured Unlocked
goto End
:FAIL
echo Invalid keyword
goto UNLOCK
:MDLOCKER
md Secured
echo lock unlocked
goto End
:End

NOTE: In 23rd Line You can see the default password i.e., 123456 , so just change this to the password you want.

- So Just write The Codes In a same Way it is written And Save as "all file" type with file name lock.bat or anything.bat

Step 4:
1. When you open that Lock.bat file, it will create one folder name Secured 
2. So, copy any files or folders you want to hide and paste/move it to secured folder.

Step 5:
1. Now, again open that bat file and you will see that
2. Asking to lock or not. so, if you want to lock type:Y
3. And the press enter, now you folder is locked or hidden.

Bug: Some Of The Users Told Me That during This Step 5 when we lock the folder, the folder is still seen...

Bug Fixed: So Just Refresh (Press Ctrl+F5) it once in desktop or in the location where you are trying to lock that file...

Step 6:
1. In order to get your file back, open the bat file again. So now you can see something like this
2. Since here the default password i set is 123456, which you can change easily before running the program, which i already explained in Step 3.
3. Press enter, you file will be right there.

http://www.instructables.com/id/How-To-Lock-Folder-Through-CMD/