I have reached the 50 instance SQL Server limit on my Microsoft Server 2008. I have tried to remove an existing instance using the command line below but it still is reporting that "No more transforms are available because the maximum 50 has been reached." and the uninstall is hanging on Select Features. Some of the instances on this server are for SQL Server 2008 and some are for R2. Where do I go from here?
"C:\Program Files\Microsoft SQL Server\100\Setup Bootstrap\SQLServer2008R2\setup.exe" /Action=Uninstall /FEATURES=SQL /INSTANCENAME=myinstance