How to download macOS - Apple Support
support.apple.com › en-us › HT211683Oct 24, 2022 · Catalina 10.15 Mojave 10.14 High Sierra 10.13 Click the link to open the App Store page for that macOS. In the App Store, click the Get button to begin downloading the macOS installer. After downloading to your Applications folder, the installer opens automatically. Follow the onscreen instructions to install macOS. Sierra 10.12 El Capitan 10.11