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. Download Mac OS X Mountain Lion DMG File Installer for version 10.8.Check compatibility Free download and experience Apple’s OS X 9th edition with brand new features. Download Mac OS X Mountain Lion DMG File Installer for version 10.8. *However as OS X 0.8 Mountain Lion came installed on my Macbook Air i could not obtain the InstallESD.dmg from the App Store. You can still buy it from Apple and if you bought it in the past you should be able to download it from the App Store. *Global Nav Open Menu Global Nav Close Menu Apple Shopping Bag +.
