Folder Lock without any S/W. Open Notepad and copy the below code and save as locker.bat. At first time start it will create folder with name Locker automatically. Don't forget to change your password in the code. Its shown the place where to type your password. After creation of Locker folder again click on the locker.bat. Now a cmd prompt will ask for conformation press Y to lock the folder. Now Locker folder will be disappeared. To retrieve that folder click on locker.bat again. Enter the right password and the folder will be now available.