On November 9 I have installed Windows Server icence (it was Trial Edition) and rebooted. After reboot I have error in event log:
The application-specific permission settings do not grant Local Activation permission for the COM Server application with CLSID
to the user NT AUTHORITY\SYSTEM SID (S-1-5-18) from address LocalHost (Using LRPC) running in the application container Unavailable SID (Unavailable). This security permission can be modified using the Component Services administrative tool.
This was the first time I received such error and afteward I receive it every time when I try to start SQLBackupAndFTP service.