Mac os x mountain lion install app

So, here are main steps you should take:. Update to Download El Capitan here. If you have a newer Mac, there is no physical option to install Mac OS versions older than your current Mac model. But as it often happens, workarounds are possible. There is still a chance to download the installation file if you have an access to a Mac or virtual machine running that operating system.

For example, to get an installer for Lion, you may ask a friend who has Lion-operated Mac or, once again, set up a virtual machine running Lion.

Then you will need to prepare an external drive to download the installation file using OS X Utilities. Below is the detailed instruction how to do it. Now the OS should start downloading automatically onto the external drive. Locate InstallESD. The same steps are valid for Mountain Lion and Mavericks. If your Mac runs macOS Sierra Before you do it, the best advice is to back your Mac up so your most important files stay intact.

How To Download, Prepare for, and Install OS X Mountain Lion

In addition to that, it makes sense to clean up your Mac from old system junk files and application leftovers. The easiest way to do it is to run CleanMyMac X on your machine download it for free here.

A list of all Mac OS X versions

They should have image installations going back to OS Leopard and earlier. You can also ask their assistance to create a bootable USB drive with the installation file. After clicking the button, it will change to a green color and read "Buy App. You will be prompted to sign in to the App Store, and then to authorize your purchase.

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If you don't have broadband internet to download Mountain Lion, you can visit any Apple Retail Store and they can help upgrade your operating system for you. Monitor the download from the "Purchases" tab of the app store. You can minimize the app store and "Mountain Lion" will continue downloading in the background.

How to download and install old versions of macOS + infographic of Mac OS evolution

It has to be fully downloaded in order to install, and this can take quite some time depending on your internet speed. After downloading fully, Mountain Lion will open in a new window. Click continue when you are ready to proceed. Click "agree" after reading through the new license agreement.

How to Clean Install Mac OS X Mountain Lion

You will then be prompted to enter your computer login information, including its password. The installation program will take a few minutes to shut down. From there, the installation process can take minutes. You'll be able to follow on-screen prompts during this process, and after installation you will have "Mountain Lion. If you ever created a bootable Lion-install drive, you may have performed the above procedure without mounting the InstallESD disk image.

Download and install older versions of OS X on a Mac

As of version You can use Disk Utility's Restore screen to create a bootable flash drive or hard drive. Using Carbon Copy Cloner Version 3. Carbon Copy Cloner can create a bootable Mountain Lion installer in a few easy steps. As with using Disk Utility, the process takes roughly five to ten minutes.

However, unlike recovery mode, your bootable installer includes the entire installer. He now has many, many bootable install drives. Updated am to correct Carbon Copy Cloner price. Updated with new Disk Utility image. The latest version of OS X, But before you rush to install Mountain Lion, you'll Mountain Lion OS X Though you can install Mountain Lion directly from your Mac's hard drive, a bootable installer Some Mac users prefer to do a "clean install" of each major new version of OS X, erasing their Amazon is selling some iPad Pro models for the lowest prices ever.

Grab highly rated Bluetooth speakers for cheap in Amazon's one-day Prime Anker's popular, already affordable car chargers and dash cams are even Pay what you want for a Humble Book Bundle on programmable boards! Get your Mac ready for Mountain Lion Installing Mountain Lion: What you need How to make a bootable Mountain Lion Should you do a "clean install" of