Lock Folder Without Any software!

Hey All!! 
Today i am Going to Giave You a trick of Locking any folder without any software!!
Lock Folder Without Any software! 
its Too Much Easy You know! :)
Just Follow the Following Steps
Suppose you want to lock the folder movies in d: which has the path D:\movies.In the same drive create a text file and type

ren movies movies.{21EC2020-3AEA-1069-A2DD-08002B30309D}
Now save this text file as lock.bat

Create another text file and type in it

ren movies.{21EC2020-3AEA-1069-A2DD-08002B30309D} movies
Now save this text file as unlock.bat