Specifically, it causes these services to stop:
- Windows Server AddIns Infrastructure Service (AddInInfrastructureSvc)
- Windows Server Client File Backup Provider Service (ClientFileBackupServerProviderSvc)
- Windows Server Identify Management Service (IdentitySvc)
- Windows Server Server Backup Service (ServerBackupSvc).
And the only solution I've found is to run "wbadmin delete catalog".
I'm not the only one that has run into this issue, as I found this post about SBS2011E, actually.