How to Re-Download OS X Mountain Lion Installer from the Mac App Store Jul 26, 2012 - 31 Comments After you’ve upgraded to OS X Mountain Lion on the primary Mac you bought it from, the installer app deletes itself from your /Applications/ folder. If you still need OS X El Capitan, use this App Store link: Get El Capitan. To download it, your Mac must be using macOS High Sierra or earlier. To download it, your Mac must be using macOS High Sierra or earlier. We also have a complete guide to installing and upgrading to Mountain Lion (OS X 10.8).]. So you can't download the Lion installer from the Mac App Store. Macworld is your best source for. OS X Mountain Lion is available now as a download from the Mac App Store. Just click the Mac App Store icon in your dock, purchase Mountain Lion, and follow the onscreen instructions to install it. Mountain Lion will not only make your Mac work better, it also makes your Mac work even better with your iPhone, iPad, and iPod touch. Jul 26, 2012 How to Re-Download OS X Mountain Lion Installer from the Mac App Store Jul 26, 2012 - 31 Comments After you’ve upgraded to OS X Mountain Lion on the primary Mac you bought it from, the installer app deletes itself from your /Applications/ folder.
[Editor's note: This article is part of our series of articles on installing and upgrading to Lion (OS X 10.7). We also have a complete guide to installing and upgrading to Mountain Lion (OS X 10.8).]
Unlike previous versions of Mac OS X, Lion (OS X 10.7) doesn’t ship on a bootable disc—it’s available only as an installer app downloadable from the Mac App Store, and that installer doesn’t require a bootable installation disc. Indeed, this lack of physical media is perhaps the biggest complaint about Lion’s App Store-only distribution, as there are a good number of reasons you might want a bootable Lion installer, whether it be a DVD, a thumb drive, or an external hard drive.
For example, if you want to install Lion on multiple Macs, a bootable installer drive can be more convenient than downloading or copying the entire Lion installer to each computer. Also, if your Mac is experiencing problems, a bootable installer drive makes a handy emergency disk. (Lion features a new recovery mode (also called Lion Recovery), but not all installations of Lion get it—and if your Mac’s drive is itself having trouble, recovery mode may not even be available. Also, if you need to reinstall Lion, recovery mode requires you to download the entire 4GB Lion installer again.) Finally, a bootable installer drive makes it easier to install Lion over Leopard (assuming you have the license to do so).
Thankfully, it’s easy to create a bootable Lion-install volume from the Lion installer that you download from the Mac App Store; just follow the steps below.
Update: When this article was originally published, the Mac App Store version of Lion would not boot any Macs released in mid-2011 or later, as those models shipped with a newer version of Lion preinstalled. However, unlike with the CD- and DVD-based Mac OS X installers of old, Apple can—and does—update the Mac App Store version of the Lion installer. So if you create a bootable Lion-installer drive using the current version of the Lion installer—which, as of 2/10/2012, installs OS X 10.7.3—that drive will work with all current Lion-capable Macs. If your only Mac was released after Lion, so you can't download the Lion installer from the Mac App Store, I've also provided instructions for creating a bootable Lion-install drive for newer Macs.
Part 1: For all types of media
The next steps depend on whether you want to create a bootable hard drive or flash drive, or a bootable DVD. I recommend a hard drive or flash drive—a DVD will work, but it takes a long time to boot and install.
To create a bootable hard drive or flash drive
Note: In versions of the Lion installer prior to 10.7.4, you didn’t need to first mount the InstallESD.dmg image—you could simply drag the image itself into the Source field. However, with the 10.7.4 installer, you must use the mounted Mac OS X Install ESD volume or you will get an error at the end of the restore procedure and the newly created bootable drive may not function properly.
Part 2b: To create a bootable DVD
Os X Mountain Lion Installer Apps
You can now boot any Lion-compatible Mac from this drive or DVD and install Lion. You can also use any of the Lion installer’s special recovery and restore features—in fact, when you boot from this drive or DVD, you’ll see the same Mac OS X Utilities screen you get when you boot into restore mode.
Note: As explained in our main Lion-installation article, if you leave the Lion installer in its default location (in
/Applications ) and use it to install Lion on your Mac’s startup drive, the installer will be automatically deleted after the installation finishes. So if you plan to use that installer on other Macs, or to create a bootable disc or drive as explained here, be sure to copy the installer to another drive—or at least move it out of the Applications folder—before you install. If you don't, you'll have to re-download the entire thing from the Mac App Store.
If you've already installed Lion—so it's too late to move the installer—you've may find that the Mac App Store claims that Lion is already installed and prevents you from downloading it again. As I explained in our main Lion-installation article, you should be able to force a re-download using one of the following three tricks: First, Option+click the Buy App button in the Mac App Store. If that doesn't work, switch to the Mac App Store's main page and then Option+click the Purchases button in the toolbar. If that doesn't work, quit the Mac App Store app and then hold down the Option key while launching the Mac App Store again. One of these three procedures should get rid of the 'Installed' status for Lion and let you download it. Update: Apple appears to have recently made this process easier: If you previously purchased Lion from the Mac App Store, the button next to Lion in the Store should simply say Download—click it to re-download the installer.
Updated 7/20/2011, 10am, to add note about moving the Lion installer package to prevent it from being deleted.
Updated 7/22/2011, 11:10am, to add instructions for forcing a re-download of the Lion installer, if necessary.
Ps3 jailbreak 3.55 download ps3 custom firmware. Updated 8/8/2011, 9:19am, with additional information about thumb-drive capacity and drive format.
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Updated 8/19/2011, 2pm, to clarify compatibility.
Updated 2/10/2012, 12pm, with information about compatibility when using the latest Lion installer, and to note easier re-downloading of Lion installer.
Updated 6/27/2012, 9pm, to add note about Disk Utility error message introduced with the 10.7.4 installer, and 6/29/2012, 8:20am, to update instructions so they work when creating a drive using the 10.7.4 installer.
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Apple OS X Mountain Lion is the latest release of the world's most advanced desktop operating system. Mountain Lion includes over 200 new features to update your Mac into the best computing experience yet. With the new Messages app you can send text, photos, videos, contacts, Web links, and documents to anyone using another Mac, iPhone, iPad, or iPod touch -- you can even start a conversation on one device and continue it on another. The new Share button makes it easy to share files, Web pages, photos, and videos, as well as tweet right from the app you are using. With the Reminders app you can create to-do lists and alerts that appear in the new Notification Center. With Notes you can write down all your ideas and even speak your words with voice dictation. Play head to head games on your Mac with friends on their Macs or iOS devices with Game Center. And with iCloud built in, it's simple to keep all your mail, contacts, calendars, reminders, notes, to do lists, music, photos, iWork files, PDFs, and more up to date across all your devices.
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