Like the title says, I upgraded to Jira Software 8.3 and the batch files used to start and stop the service don't work and after investigating, the service "JIRASoftware310719202819" doesn't exist. The only service I have is for Confluence. I have to run "start-jira.bat" in C:\Program Files\Atlassian\JIRA\bin in order to start the server. Is there a way to re-install the service?