Trick to lock your private folder

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 loc.bat
Create another text file and type in it
ren movies.{21EC2020-3AEA-1069-A2DD-08002B30309D} movies
Now save this text file as key.bat and key. Press loc and the folder games will change to control panel and you cannot view its contents. Press key and you will get back your original folder.
try it out!!!!!!!