I had to update the DB-System. I copied the DB from a Microsoft SQL Server 2008 to a MS SQL 2014 server. Then I changed the connection string in the file bin/config.bat - test of connection was successful and started the jira-service.
When I start the service the server stucks at step "Running system startup tasks" (for 4 hours yet)
Version: 7.3.1
What can I do? What did I wrong?