Locate it and double click on it to open it up. Unless you've changed where files download, the beta installer (macOSPublicBetaAccessUtility.dmg) will show up in your downloads folder.When asked if you want to allow downloads on '' click on 'Allow.'.Click on ' Download the macOS Public Beta Access Utility.'.Make sure you've made your backup as outlined above, and then scroll down to ' Enroll your Mac' option.Once you're enrolled in Apple's public beta testing program, you can download macOS Big Sur. Once signed in and at the Guide for Public Betas page, scroll up to the top and click on 'Enroll Your Devices' then click on 'macOS.'ĭownloading and Installing the macOS Big Sur Beta.Agree to the Apple Beta Software Program terms and conditions.Enter your Apple ID and password and then a two-factor authentication code if verification is required.

Click on the blue Sign up button or, if you're already a member, click sign in.Visit the Apple Beta Software Program website in a browser on your Mac.Installing macOS Big Sur requires enrolling your Mac in Apple's free Apple Beta Software Program. If you want to revert back to your previous setup after testing macOS Big Sur or if it doesn't work out, you'll need to re-install macOS Catalina and a backup can be helpful to get things up and running as before. The operating system update does not support the following Macs that were capable of running macOS Catalina:īefore upgrading to the new beta, make sure to make a backup using Apple's Time Machine feature with an external drive. MacOS Big Sur is compatible with most 2013 and later machines, outlined below: This is beta software, and there are often bugs and issues that pop up that can prevent software from working properly or cause other problems. Before you jump in and download the update, it's worth noting that Apple does not recommend installing the macOS Big Sur Public Beta on your main Mac, so if you have a secondary machine, use that.

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