If you have a Time Machine backup from before you updated your Mac, you can jump to this section.
How to get older versions of os x how to#
We have a separate article about how to download the old version of macOS or Mac OS X here, so if you are yet to get the version of the Mac operating system you want pop over there for advice on how to get it… Step 3: Or find an old Time Machine backup Next you need to download the installer for the version of Mac OS X or macOS you wish to install. Step 2: Download the version of macOS, Mac OS X you require If you want to run older versions of OS X on your Mac, you need to get an older Mac that can run them. Simply speaking, Macs cannot boot into an OS X version older than the one they shipped with when new, even if it’s installed in a virtual machine.
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How to get older versions of os x install#
Similarly, it’s possible that you will find you can’t install an old version of Mac OS X on a new Mac, this is because the drivers for the hardware in your new Mac simply don’t exist in the old software, so it can’t run. We do have an article about installing MacOS on an older Mac here though. This is because newer versions of macOS tend to drop support for older Macs. However, if you were hoping to install newer version of macOS on an old Mac you might find that you can’t. If you are installing an old version of Mac OS X on an old Mac you shouldn’t have too many difficulties. We have a full list of which Macs run which versions of Mac OS X and macOS here. Step 1: Check your Mac can run the macOS versionįirst you need to determine that your Mac will be able to run the version of macOS or Mac OS X you want to install.Īs a guide, expect your Mac to be able to run any version of macOS or Mac OS X that was supported when that Mac launched, and any that were released in the few years immediately following the purchase. We have more information about downgrading your version of the Mac operating system, especially for anyone looking to downgrade from Catalina to Mojave or Mojave to High Sierra, here. In this article we will cover how to install old versions of Mac OS X or macOS on your Mac. Or possibly you just don’t like the version of macOS that you have installed.Įither way, you have questions and we have answers. Maybe you are a developer and you need to be running multiple versions of Mac OS X so that you can be sure that your software runs correctly on them.
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Perhaps you are relying on software you have discovered doesn’t work properly in the newest version of macOS. There are a few reasons why you might want to install an old version of macOS or Mac OS X.