Simply open the "Install macOS Catalina" app from your Applications folder and follow the on-screen prompts.
Apple makes it relatively straightforward to access older versions of macOS, provided you know where to look. Use one of the official methods below to secure your file. Method 1: Download via the Mac App Store (Recommended)
Select your primary internal storage drive from the left sidebar menu.
Open and format the drive as Mac OS Extended (Journaled) with a GUID Partition Map . Name the drive "CatalinaUSB".
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Simply open the "Install macOS Catalina" app from your Applications folder and follow the on-screen prompts.
Apple makes it relatively straightforward to access older versions of macOS, provided you know where to look. Use one of the official methods below to secure your file. Method 1: Download via the Mac App Store (Recommended) download macos catalina 10157 dmg file install
Select your primary internal storage drive from the left sidebar menu. Simply open the "Install macOS Catalina" app from
Open and format the drive as Mac OS Extended (Journaled) with a GUID Partition Map . Name the drive "CatalinaUSB". download macos catalina 10157 dmg file install