I need to remove self signed certificates from a 2 node cluster that was used for testing SQL Server 2012 encrypted connections. I did a similar test on my desktop and SQL Server would not restart after removing the self signed cert there, complaining about not being able to find the certificate. I set Force Encryption to no with the SSConfig Manager and dropped the cert with MMC.
The cluster is going to turn into a QA SQL installation and I can't afford to have SQL not restartable.
Thanks, joe