You should have a Roon icon in the system tray, bottom right. (If you don’t see it, look in the tray‘s ^ menu). Click (or right click?) it and quit Roon Server from there:
You should have a Roon icon in the system tray, bottom right. (If you don’t see it, look in the tray‘s ^ menu). Click (or right click?) it and quit Roon Server from there: