KB5035857 provides a solution regarding the failure of Veeam Backup software to work and the service not starting after a Windows update

KB5035857 provides a solution regarding the failure of Veeam Backup software to work and the service not starting after a Windows

Windows Event:
Service cannot be started. Veeam.Backup.DBCreator.DatabaseException: Failed to connect to PostgreSQL server localhost:5432. No connection could be made because the target machine actively refused it ---> Npgsql.NpgsqlException: Failed to connect to 127.0.0.1:5432 ---> System.Net.Sockets.SocketException: No connection could be made because the target machine actively refused it

   at Npgsql.Internal.NpgsqlConnector.Connect(NpgsqlTimeout timeout)

   --- End of inner exception stack trace ---

   at Npgsql.Internal.NpgsqlConnector.Connect(NpgsqlTimeout timeout)

   at Npgsql.Internal.NpgsqlConnector.<RawOpen>d__200.MoveNext()

--- End of stack trace from previous location where exception was thrown ---

   at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()

   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)

   at Npgsql.Internal.NpgsqlConnector.<<Open>g__OpenCore|195_1>d.MoveNext()

--- End of stack trace from previous location where exception was thrown ---

   at Sys...

Windows Event:

2024-03-26 17:42:24.446 +03 [11144] FATAL:  configuration file "C:/Program Files/PostgreSQL/15/data/postgresql.conf" contains errors

When we check, we see the latest Windows updates in the image below.

12 Mart 2024—KB5035857 (İs Derlemesi 20348.2340) - Microsoft Desteği

The necessary action is to execute the PowerShell command below or uninstall the KB5035857 update shown in the image above and then reboot the system.

powershell  

wusa /uninstall /kb:5035857