grey screen, then automatically switch to Internet recovery mode. No visible progress for about 30 seconds, i.e. No surprise, since the system partition has been erased. regular startup: Bootup stops at question mark screen. I have now been trying to re-install OS X on the MBA, but didn't succeed. Before doing so, I erased the default system/home partition with Disk Utility in Recovery Mode. The machine came with OS X Lion pre-installed, and has been upgraded up to El Capitan while I used it. I'm trying to reinstall OS X (Lion, or higher - which version doesn't matter to me right now) on a Macbook Air, 11-inch, Late 2010 model. Hoping someone here has a different idea. Tried every suggestion I could find on the net, but nothing worked. Once complete, you can log back into your computer and Mavericks will be up and running.I'm out of ideas. #Free download os x lion for macbook pro macOnce downloaded, simply tell the computer where you want Mavericks installed (the internal Macintosh HD, and not the external Time Machine backup drive), and the installation process will begin.ĭuring installation, your Mac will restart at least once and the whole process will take around 15 to 20 minutes, depending on the machine you're updating. #Free download os x lion for macbook pro for freeOpen the Mac App Store, search for or click on Mavericks and download it for free - or click on this link to be taken directly to the Mavericks page. #Free download os x lion for macbook pro installOnce backed up, restart your Mac to ensure no apps or processes are running in the background, and no more updates are required.įinally, you're ready to install OS X Mavericks. This may take some time if you've a lot of data on your Mac. Right click on this, then click Back Up Now. Once set up, the Time Machine drive will appear as an icon on your desktop. Ensure the external drive is empty and click Ok. Attach an external hard drive - one with a capacity larger than that of the Mac itself - and the computer will ask if you want to make the drive a Time Machine backup drive. #Free download os x lion for macbook pro updateShould anything go wrong during the update - or you accidentally install Mavericks as a fresh install - you can always restore your documents, music, apps and everything else from a backup.Īpple's Time Machine app makes backing up easy. Remember you need to have at least 8GB of free disk space, so clearing aware unused apps and old downloads is always a good idea.įinally, you'll want to backup your Mac. Next, delete any applications you no longer use by dragging their icons from the Applications folder and into the bin, and it's worth emptying the bin and downloads folder too of anything you no longer need. If another red message is displayed, then a trip to your local Apple Store would be advisable. If a red message is displayed, the app will suggest you click Restore Disk Permissions - do so, and let the app conduct the repair. If all is well, a green confirmation message will be displayed. This process could take a couple of second or several minutes depending on when it was last done, and how big the hard drive is. Open Apple's Disk Utility application, found by clicking Spotlight in the upper-right corner and typing out the app's name.Ĭlick on your computer's hard drive on the left-hand column - it'll be called Macintosh HD by default - and then click Verify System Permissions on the right-hand side. Updating the operating system without running the newest version of every application could make apps unstable or unusable after the OS has been installed.īefore installing a shiny new operating system is a good time to perform some basic system maintenance. In plain English, if your Mac is already running last year's OS X Mountain Lion or Lion, then it will also be capable of running Mavericks, too.īefore heading to the App Store an downloading Mavericks, you should make sure your computer and every app on it is fully up to date.
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