Reinstall a previous version of the Mac OS using the appropriate Mac OS Installer. There are a few different ways to perform the downgrade here are two of them. What You Need in O rder to Downgrade from macOS Catalina With those caveats in mind, let’s start the downgrade process. If you’re downgrading because of macOS Catalina installation problems, be sure to check the Catalina Install Issues section near the end of this article for any special steps you may need to take. If you do not know who your IT Support Provider is, please use the IT Lookup Toolto locate the appropriate support resource for your department.If you would like to downgrade from macOS Catalina to a previous version of the Mac operating system it can be done, but it isn’t always an easy or painless process. Students can contact the Tech Team for assistance with or questions about upgrading their machine to a supported version of macOS.įaculty, Staff, and Employees should contact their IT support unit. Where can I get help with upgrading macOS? Once your computer has successfully upgraded to macOS 10.11 you can use the steps above to upgrade to a supported version of macOS. 
If you are running macOS 10.10 or lower, you will need to upgrade your computer to 10.11 El Capitan first. To see if your computer can run macOS 11 Big Sur, check Apple’s compatibility info and installation instructions. If you are running macOS 10.11 or newer, you should be able to upgrade to at least macOS 10.15 Catalina. If you are upgrading from an older version of macOS, you may need to also upgrade some of the applications installed on your computer. The process of upgrading your computer varies depending on which version of macOS is currently installed on your computer.Īs of 10.15 Catalina, macOS does not support 32-bit applications. If this is the case, you will need to replace your current computer with a newer model. If your computer does not meet the minimum requirements for Catalina or Mojave, you will not be able to install a supported version of macOS. If you are running an older OS, you can look at the hardware requirements for the currently supported versions of macOS to see if your computer is capable of running them:
If your computer is running macOS High Sierra 10.13 or older it will need to be upgraded – make a note of your installed macOS version and your computer’s model and year as that information will be helpful when upgrading macOS. You’ll see the macOS name and version number, such as macOS Catalina 10.15.5 as well as your computer model and year. From the Apple menu in the top left corner of your screen, choose About This Mac. All UVM-owned computers running macOS 10.13 High Sierra or older must be updated or replaced as soon as possible to comply with the University Information Security Policy.
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