I did not check the box for SharePoint as we did not have or need PowerPivot at the time, now it's months down the road and we want to try out PowerPivot but I need to have SQL Server 2012 installed with support for Analysis Services for SharePoint. Is there a way to do this?
I have uninstalled Analysis Services and reinstalled but the only way I see to get this option is to uninstall the full SQL Server installation, which I don't want to do as I don't know what this would break at the moment.