This is the standard way to get the installer for creating bootable media. Open the macOS Catalina page on the App Store .
However, if you want to download the full installer, you can do so by following these steps: download macos catalina 10.15.7 full installer
Apple provides hidden direct links to the Mac App Store that force the download of the full installer rather than the stub. This is the most reliable method for the specific 10.15.7 version. This is the standard way to get the
System Settings (Software Update) will open. Confirm the download when prompted. Once finished, the installer will be in /Applications/Install macOS Catalina.app the installer if it opens automatically. 2. Download via Terminal (Advanced) download macos catalina 10.15.7 full installer
