Are you using a Chromebook to update your Garmin maps? Unfortunately, Garmin Express is not compatible with the Chromebook. The company hasn't released any version of the Garmin Express For Chromebook. If you want to update your Garmin device, you will require a Windows or Mac operating system. For more information, you can speak with our Garmin experts at any time a day. You can be in touch with us by dialing our helpline number or through the chat process. We are available 24*7.