Hello Folks, very often after an upgrade from Windows Server 2012 to Server 2012 R2 it can happen that you will receive an issue in the Server Manager telling you that you got an Data retrieval Error for one or more upgraded Servers. This issue has, from my Point of view, nothing to do with User … Continue reading Tip: Fixing Windows Server 2012 upgrade to Server 2012 R2 Data retrieval issue in Server Manager