How to lock your private folder

Suppose you want to lock the folder images in d: which has the path D:\movies.

In the same drive create a text file and type:

ren images images.{21EC2020-3AEA-1069-A2DD-08002B30309D}

Now save this text file as loc.bat

Create another text file and type in it

ren images.{21EC2020-3AEA-1069-A2DD-08002B30309D} images

Now save this text file as key.bat
     Now you can see 2 batch files loc and key. Press loc and the folder movies will change to control panel and you cannot view its contents. Press key and you will get back your original folder.