Installing Duplicati on Windows has a couple of steps to be careful at, when running as a Windows service. “Launch Duplicati at startup” sets up the start-at-login launch of the Tray Icon (in normal style without --no-hosted-server), and the “Launch Duplicati now” at the end can do the same start then. Both tend to cause unexpected issues when they bump into the started-as-service Duplicati. Nicer service installer is still TBD.