Launch your web browser and click this official link: macOS Catalina on the Mac App Store. Click if prompted. Once the App Store opens, click the Get button.
Ensure the output explicitly states that the developer ID is and that the certificate chain is trusted. Next Steps: Creating a Bootable USB Installer
Your Mac will open the panel and ask if you want to download macOS Catalina. Click Download .
Launch your web browser and click this official link: macOS Catalina on the Mac App Store. Click if prompted. Once the App Store opens, click the Get button.
Ensure the output explicitly states that the developer ID is and that the certificate chain is trusted. Next Steps: Creating a Bootable USB Installer
Your Mac will open the panel and ask if you want to download macOS Catalina. Click Download .
