By default IFS EE client is borderless you don’t see the default windows border around the application. But if you uncheck this option, you would see the default windows border around the IFS EE client as well. This is useful if you face any problems due to the borderless behavior - we have seen issues like new dialog boxes hidden behind in the screen due to this borderless behavior but that is already fixed as a bug fix. 

Hope the other options are self explanative. 

Thank you so much for your help