Garmin Devices. However, its primary function is to update your devices with the latest software and maps. In order to perform an update or any other function, you must have this intuitive, user-friendly application. In other words, you have to perform its Setup procedure. This involves downloading its latest Setup File and installing the same on your system. Subsequently, you must generate a Garmin Express Account for accessing your services and products any information pleases visit this side. my.avast.com