How to Prevent Anonmyous Users from accessing SharePoint Document Library

In SharePoint 2010 & 2013, we can enable Anonymous users to access the SharePoint site. Lot of Business Users have come up with this issue of anonmyous users are able to see the contents uploaded by them. 
 
We need to make the below settings so that Anonymous users shouldn't access the documents uploaded by Business Users
 
Steps 
  •  Click “document library settings” under “Settings” button.

  •  Click “permissions for this document library”.

  •  Click “Anonymous Access” under “settings” button.

  •  Uncheck all the check boxes and click ok.
Happy SharePointing :-)