Now that the ability to install software has been restricted you will need to use Microsoft Endpoint Manager Software Center to install software.
You will find Software Center in the Windows Start Menu.
Start => Microsoft Endpoint Manager => Software Center
Once you open Software Center you will see the software that is available to you.
Simply click on a selection from the available software and click on Install on the following page
To return to the list of applications click on the word Applications in the menu on the Left side of the screen.