Once completed, the installer will open, and you can follow the onscreen instructions to install macOS Catalina on your Mac. This will download macOS Catalina into your Applications folder. You can also visit the macOS Catalina website, which features a download link for installing the software onto compatible devices. Open up the App Store in your current version of macOS, then search for macOS Catalina.Ĭlick the button to install, and when a window appears, click 'Continue' to begin the process. You can download and install macOS Catalina from the App Store on your Mac. Download macOS Catalina from the App Store For information on how to do this, head over to our ultimate guide to backing up your Mac. So before you download and install macOS Catalina, make sure your Mac is backed up. Whenever you make the move to a fresh-off-the-shelf new operating system, we highly recommend backing up the files on your Mac, so if anything goes wrong you can quickly restore your machine to its previous working order.
Back up your Mac before upgrading to macOS Catalina
