Error: Cannot delete file because it's being used by another person or program

Sometimes you may getting the error when attempting to delete a file which is used by another program or user. In this case you can not rename,move or delete this file or folder.
The error like:
Cannot remove folder xxxxxx: It is being used by another person or program.Close any programs that might be using the file and try again.

And the screen like below:


Solution:
1. Try to findout which