We have windows 2008 R2 RDS server, we have purchase Windows 2012 RDS User cals which says it can be use for Windows 2008 r2 as well,
When I enter the license key to license to add new cals its says "Invalid or missing Data" ,
The vendor says you need to update with latest SP2 but their isn't any SP2 for windows server 2008 R2
do anyone know which KB? i have to update for this?