Folder lock trick wihout any softwear(new method

1.make folder on desktop
2.then open cmd
3.type "cd desktop" click enter
4.then type "cacls foldername /E /P everyone:n" click enter
now check your folder ...
to unlock folder type "cd desktop" click enter
then type "cacls foldername /E /P everyone:f" click enter
......so check this method....