Windows 8.1 Enterprise is now available, and included in it is a brand new feature called Start screen control. For those not familiar with this new feature, it is designed to allow IT pros to configure the layout of the Start screen for a group of users, preventing those users from making changes to that layout.
Once arranged, you can export this layout into an XML file using a simple PowerShell command:
Export-StartLayout -path C:\StartLayout.xml -As XML
Next, you can specify a path to this layout file using Active Directory Group Policy. From the Group Policy Management Editor, navigate to “User Configuration \ Policies \ Administrator Templates \ Start Menu and Taskbar” where you can find the “Start Screen Layout” policy setting: