I'm not sure if I remember correctly (after a fresh macOS install, I unselected the Microsoft Autoupdater when installing the Office suite so I'm not bothered anymore) but:
- There should either be an option to not perform an automatic search for updates in the app /Library/Application Support/Microsoft/MAU2.0/Microsoft AutoUpdate.app
- You could delete the launch daemon to prevent the updater from auto-starting /Library/LaunchDaemons/com.microsoft.autoupdate.helper.plist
Is the updater set to install updates automatically? Mine is and the Updater icon never appears in the dock, maybe it appears there when updates are set to manual install?
Is the updater set to install updates automatically? Mine is and the Updater icon never appears in the dock, maybe it appears there when updates are set to manual install?