Why

The Group Management Console (gpmc.msc) on Windows Server 2008 (R2) don’t recognize the new Group Policy settings for Windows 8 or Windows Server 2012. To enable this you need to copy the new Group Policy templates into the Central Store in the domain.

For the new Windows 8 or Windows Server 2012 Group Policy overview you can download an overview from http://www.microsoft.com/en-us/download/details.aspx?id=25250

How

Download the windows 8 .ADMX files from microsoft site
http://www.microsoft.com/nl-nl/download/details.aspx?id=36991

Or copy the policy’s from a Windows 8 / Windows Server 2012 client, source location %systemroot%\PolicyDefinitions

Paste the Group Policy Templates .ADMX files to the central store location on the Domain.
\\domainname\sysvol\domain\policies\PolicyDefinitions
on a domain controller local path this is %systemroot%\sysvol\domain\policies\PolicyDefinitions

 

In practice

Example of configuring the Windows Store on/off by windows 8 group policy’s
Screenshot before importing the .ADMX templates in Windows Server 2008R2, no windows 8 store configuration available.

Screenshot after importing the .ADMX templates to the central store location, you can configure the Windows Store on/off