Garmin GPS device is a very handy satnav machine which is quite popular amongst the users due to obvious reasons. Probably, that’s one of the reasons most people ask how to update Garmin GPS. It all starts with connecting your Garmin device to the computer. Then navigating to the website www.garmin.com/express. Now install the Garmin Express for Windows or Mac. Further, you will need to register your Garmin device in the Garmin Express software, click the option check for updates and Click the button install now. Once you follow all these steps, the Garmin device might take some time to install the updates and maps depending on the file size and the internet connection. Wait for some time to receive the updates on your Garmin GPS device.