Garmin Express can be downloaded in a compatible Mac or Windows PC. The following are the requirements to install it on your PC safely. 

Mac users follow these steps

1. Connect your Mac to the high-speed internet.
2. Now you can visit the website garmin.com/express.
3. Click Download for Mac.
4. You will receive the GarminExpress.dmg or GarminExpressInstaller.dmg file in your Mac device.
5. Click the down arrow on the top right corner on your Mac.
6. Double-click the Garmin Express software installer file.
7. Click Continue on all the further permissions.
8. Click Agree on the license agreement.
9. Click Install when the GarminExpress window appears.
10. “Installer is trying to install a new software” screen appears, enter the admin name and password, and click Install Software.
11. Click Close when the software says Installation Complete.