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. ![]() ![]() In the App Store, on the left side of the window, select Updates.In the menu bar, click the Apple icon to open the Apple menu. ![]() 13 (High Sierra) The OS X Yosemite installer can be downloaded from the Mac App. 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. 7 Lion is compatible but not tested by GRAPHISOFT Mac OS X 10. 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.Follow the on-screen instructions to perform a compatibility check, and prepare for installation.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. In the sidebar, select the volume you wish to repair. After a few minutes, the OS X Utilities window will appear. Hold the keys until the Apple logo appears. Download the El Capitan installer from Apple. As your Mac restarts, hold down the Command () R combination immediately upon hearing the startup chime.If your Mac is running OS X Lion or Mountain Lion, follow these steps to upgrade to El Capitan. If your Mac is running Mavericks or newer, you can proceed to upgrade to Catalina. * 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. After you start the macOS High Sierra installation process, you may notice that your Mac’s screen has gone. Return to the Mac App Store and try again. If you still have problems, quit the Mac App Store (using force quit, if needed), and then restart your Mac. ![]() Back up your dataĪlthough not required, we strongly recommend you back up your Mac before proceeding with an upgrade. Select macOS High Sierra and start the download again. However, you can still try to upgrade to El Capitan. If your Mac is not on this list, you cannot upgrade to Catalina.
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