We are using the Installshield script to deliver the OEM SQL Server 2014 but kept running into an error "SQM key not found". Eventuall I found this article and Microsoft acknowledge that it is a bug
https://support.microsoft.com/en-us/kb/2820068 (This occurs because InstallShield or the bootstrapping application keeps open some Windows Installer handlers when you run the SQL Server setup. Therefore, the installation process freezes.)
Is there something that I can do to get around this error? Is there a component that i can replace in the SQL Server installation folder?
Thank you for your help.