If Jenkins fails to restart with error “System error 1067 has occurred.”
- Download latest Jenkins war from https://jenkins-ci.org/
- Keep it program files folder (e.g. C:\Program Files (x86)\Jenkins)
- Start Jenkins (java -jar jenkins.war)
- Check console, olf jobs would not be there.
- Now stop this Jenkins instace (Cntrl +C)
- Now start old instance through service, it should start normally and old jobs should appear at console.