Install the macOS installerĭouble-click the downloaded file to open a window showing its contents. A file named InstallMacOSX.dmg will download to your Mac. If you still need OS X El Capitan, use this link: Download OS X El Capitan. Download OS X El Capitanįor the strongest security and latest features, find out whether you can upgrade to macOS Catalina, the latest version of macOS. If you're using a Mac notebook computer, plug it into AC power. It takes time to download and install OS X, so make sure that you have a reliable Internet connection. Time Machine makes it simple, and other backup methods are also available. Make a backupīefore installing any upgrade, it’s a good idea to back up your Mac. If your Mac isn't compatible with OS X El Capitan, the installer will let you know. To find your Mac model, memory, storage space, and macOS version, choose About This Mac from the Apple menu . Mac Pro introduced in early 2008 or later Mac mini introduced in early 2009 or later MacBook Pro introduced in mid 2007 or later ![]() MacBook Air introduced in late 2008 or later MacBook introduced in 2009 or later, plus MacBook (13-inch, Aluminum, Late 2008) Your Mac also needs at least 2GB of memory and 8.8GB of available storage space. You can upgrade to OS X El Capitan from OS X Snow Leopard or later on any of the following Mac models. The OS X Mountain Lion splash screen appears. Select Reinstall OS X, and click Continue. Here’s how to install (or reinstall) OS X, step by step: Boot from your Recovery HD partition by restarting your Mac while holding down the cmd+R keys.Getting Lion from the App Store is convenient, but if you want a physical copy of the installation, you can easily make your own Lion install DVD or USB drive with Disk Utility.With more than 200 innovative new features, Mountain Lion includes iCloud integration, the all new Messages app, Notification Center, system-wide. ![]() Apple today (July 25, 2012) announced that OS X Mountain Lion, the ninth major release of the world’s most advanced desktop operating system, is available as a download from the Mac App Store.
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