SQL Server 2012 used to be backed up using tasks that were configured by SQL management studio. Lately, the underlying OS windows 8.1 was upgraded to Win10 v1803 and although the rest works normally, no SQL backups run anymore. Investigating, I found that in SQL management studio, there no longer is a node "SQL server agent" and that seems to be why we can't view or re-configure backups. The SQL server agent service is still present and can be started in services.msc, but immediately stops, saying: ""SQLSERVERAGENT service on Local Computer started and then stopped. Some services stop automatically if they have no work to do".
I had SQL management studio 2012 installed, I installed ssms 2017 (latest 17.8) as well, but no change.
Where to go from here?