Launch Garmin Express and click on the “myMaps” tab. Click on the “Garmin Map Update application” link and select the option to “Run” the file. Click on “Continue” when the interface displays on-screen, then accept the terms and conditions. Click on “Continue,” then select “Yes” when prompted to reinstall map updates on your computer. Select the geographical region of the maps you want installed, then click on “OK. ” Your maps will now be updated.