![]() ![]() Do not close the lid or power off your Mac until installation is complete. During installation, your Mac may restart, or display a blank screen for a short time.In the Updates window, locate the line that says Catalina. ![]() Compare price, features, and reviews of the software side-by-side to make the. In the App Store, on the left side of the window, select Updates. macOS Catalina using this comparison chart.An iMac must be 2012 or newer to run Catalina 10.15. It looks like this in Mountain Lion: The red arrow indicates the SUB-MODEL. Find you SUB-MODEL by doing 'About this Mac.' from your Apple menu. In the menu bar, click the Apple icon to open the Apple menu. For us to answer, we need to know the SUB-MODEL of your iMac.Do not close the lid or power off your Mac until installation is complete.Īfter you've gone through the preparation steps, you need to download and install the latest version of macOS. During installation, your Mac may restart, or display a blank screen short time.When this process is complete, an installer application named Install OS X El Capitan is placed in your Applications folder.Your Mac also needs at least 4GB of memory and 12.5GB of available storage space, or up to 18.5GB of storage space when upgrading from OS X Yosemite or earlier. Follow the on-screen instructions to perform a compatibility check, and prepare for installation. If youre using one of these computers with OS X Mavericks or later, you can install macOS Catalina.In the archive, double-click InstallMacOSX.pkg.Double-click the downloaded archive, InstallMacOSX.dmg, to view its contents.The file size is 5.8 GB, so the download may take a while, depending on the speed of your Internet connection. Download the El Capitan installer from Apple.If your Mac is running OS X Lion or Mountain Lion, follow these steps to upgrade to El Capitan. Follow the onscreen installation instructions. After downloading to your Applications folder, the installer will open automatically. Software Update may open and ask you to download from there. Click the Get button in the App Store to start downloading. If your Mac is running Mavericks or newer, you can proceed to upgrade to Catalina. Catalina 10.15 Mojave 10.14 High Sierra 10.13 Use these links to find macOS in the App Store. * If your Mac is running OS X Lion or Mountain Lion, you must upgrade to El Capitan before you can upgrade to Catalina. The following versions of OS X and macOS can be upgraded to macOS Catalina. If anything goes wrong, you can restore your Mac to its previous state. Back up your dataĪlthough not required, we strongly recommend you back up your Mac before proceeding with an upgrade. If you’re using Lion (10.7) or Mountain Lion (10.8), you will need to upgrade to El Capitan (10.11) first before you could upgrade to macOS Catalina. However, you can still try to upgrade to El Capitan. Or you can get the latest macOS Catalina on the -App Store for other versions including High Sierra (10.13), Sierra (10.12) or El Capitan (10.11). If your Mac is not on this list, you cannot upgrade to Catalina.
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