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You can bypass the App Store interface entirely using a built-in macOS command to fetch the full installer directly from Apple's servers. (Applications > Utilities). Paste the following command and press Enter: download macos catalina 10157 dmg file better
sudo /Applications/Install\ macOS\ Catalina.app/Contents/Resources/createinstallmedia --volume /Volumes/MyUSB download macos catalina 10157 dmg file better
hdiutil create -o /tmp/Catalina -size 8500m -volname Catalina -layout SPUD -fs HFS+J hdiutil attach /tmp/Catalina.dmg -noverify -mountpoint /Volumes/Catalina Use code with caution. Copied to clipboard download macos catalina 10157 dmg file better