Firefox: Download and install Reader

If your goal is to download a version of macOS that you have not already used, or, that was not available as an update from the App Store after you bought your Mac, you may need to purchase it. OS X Snow Leopard ships as a boxed version and requires a disk drive to install.

Tip: Backup Mac data before downgrading macOS or Mac OS X

It could be helpful to know where you sit on the timeline of macOS X updates. Below is a chronological list of all the updates beginning with the most recent update, High Sierra, released in Downloads for previous versions of OS X are linked below and include:.


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Downloading a. Alternatively, you could hit up your nearest Apple Store. They will likely have image files of all the different versions of the software and help you install it right there as well. If you download the file from the App Store, the installer will start immediately. Follow the prompts and be prepared to restart your computer.

A downgrade is different than an upgrade.

When you try to downgrade macOS, the installer may not launch right away depending on which versions of macOS you are moving between. Creating a bootable USB or a bootable drive is not complicated. Once your drive is prepared with your bootable version of OS X, erase the unwanted version.

Tab to the Erase page and name the file you want erased e. Hit Erase and quit out of Disk Utility. This will return you to the OS X Utilities selector. If you used Disk Drill for creating your bootable drive, a window will prompt your actions for using the install disk you made. Find and select your install disk with your bootable version of your preferred macOS, and click continue through to the license agreement. Once you agree, you should be prompted by the installer.

Once the installation is completed, your computer should restart. If it does not restart itself, make sure you restart it normally. The downgrade should be complete! So downgrade away! September 25, No big functionality updates, the focus is shifted to performance instead.

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A large grey Apple logo appears for the first time, replacing Happy Mac at startup. App arrivals: iChat and Address Book. Safari officially becomes the default web browser. Long-awaited and Mac-changing.


  • Method 1. Downgrade macOS or Mac OS X with Time Machine.
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Leopard gives a spectacular leap, introducing Time Machine , Boot Camp, QuickLook, and full support for bit software. While Leopard did a great job, Snow Leopard arrives to refine it even more. Mainly, it comes with apps rewritten in 64 bit and OpenCL. It gets easier to track app updates via the Notification Center. To enable secure password encryption and storage, iCloud Keychain in introduced. A completely new sleek design is what Yosemite is remembered for.

September 30, El Capitan features Split Views — dual-window functionality for arranging and managing app windows. Plus, OS X September 20, Major improvements go unnoticed for a user, but the overall performance skyrockets, due to embracing Apple File System and a new video standard, HEVC.

September 24, Get the full infographic.

Download and install older versions of OS X on a Mac

Prepare your Mac first Make sure you are ready to downgrade your operating system by checking in with what version of OS X you already have and ensuring you have enough hard drive room to download the older version. If the instructions I listed are impractical, then sorry for wasting your time. But be warned in advance, that 'playing around' with disk partitions is a joke of no kind. And that is one thing that no Mac user wants to do. Sign up to join this community.

The best answers are voted up and rise to the top. Home Questions Tags Users Unanswered. How to downgrade to OS Mavericks Ask Question. Asked 3 years, 11 months ago.

Snow Leopard

Active 9 months ago. Viewed 1k times. Pablo Ripoll Pablo Ripoll 1 1 1 bronze badge. Installing Mavericks on a brand new machine that shipped with Yosemite pre-installed? Voting to leave open, as the is perfectly capable of running Mavericks with no trickery required. If you have any personal data on this Mac, save it to an external drive.


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  4. The short answer is — yes, you can. If you want, you can just try to downgrade using a Mavericks installation package. Nonetheless, here's my working method. Then you've gotta back up your Mac using TimeMachine. Now wait. Jack of all Spades Jack of all Spades 2 2 silver badges 10 10 bronze badges.

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