Trick to lock your private folder

Suppose you want to lock the folder games in d: which has the path D:\Games In the same drive create a text file and

type:
ren games games.{21EC2020-3AEA-1069-A2DD-08002B30309D}
Now save this text file as loc.bat

create another text file and type in it:
ren games.{21EC2020-3AEA-1069-A2DD-08002B30309D} games
Now save this text file as key.bat

Now you can see 2 batch files loc 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.