There might be old copies of Lion, Mountain Lion, and even Snow Leopard for sale on sites like eBay. Non-developers can buy OS X Mountain Lion ($19.99) and OS X Lion ($19.99) from Apple directly. Apple will email you an unlock code, which you can redeem in the Mac App Store. If you have a valid Apple Developer account, you might be able to download older versions from /downloads. This will put an installation app in your Applications folder, which you should leave there. Once any of these downloads are complete, mount the. Disconnect all external devices from your Mac, except the hard drive you may use for making a backup. Make sure that you have a stable internet connection. If you use a MacBook, connect it to a power source. Leave the installation app in your Applications folder.ĭirect Disk Image Links for Older macOS Downloads First, prepare your computer for reverting to macOS Catalina. Once any of these downloads finishes, do not open the installer to begin the installation. Anyway, let me know what you think about the macOS 12 beta and what kind of issues you’re encountering.Mac App Store Links for Older macOS Downloads In this way, even if you encounter an unexpected problem, your business will not be affected. So it’s always better to install them on a secondary device. Beta versions of software often come with bugs and unexpected issues. So you can downgrade from macOS 12 Monterey and revert to macOS 11 Big Sur. You will have to wait patiently as the whole process will take some time.ĭowngrade from macOS 12 Monterey and Safely Revert to macOS Big Sur This much! Your Mac will now start restoring from the Time Machine backup and then reboot. Next, click on Go on and then select the latest macOS Big Sur backup on the drive. Next, select Support The source where your Time Machine backup is stored.ĥ. Then, “ Restore from Time Machine BackupIn the OS X Utilities selector ” and “ Go on“.Ĥ. Make sure to hold down the keys until your computer restarts.ģ. Now hold Command+R keys as soon as it hears the start-up bell. After that, click on apple menu select it in the upper left corner of the screen and Restart.Ģ. Make sure your Mac is connected to a stable internet connection.To restore a recent Time Machine backup after downloading macOS 12 Monterey to macOS Big Sur, follow these steps. Using the most recent backup of your Mac saved in Time Machine, you can easily restore the saved settings. Restore Settings from Time Machine Backup Note that you will need to accept the license terms before the software restarts on your Mac. MacOS Big Sur installs like a standard update. Select your bootable USB drive with macOS Big Sur from the list of startup disk options. Next, you will see the option to choose a startup disk. Now hold Option/alt key while your computer is restarting (keep pressing Option until the Apple logo disappears after restarting).ģ. Then click on apple menu in the upper left corner of the screen and Restart” from the drop-down menu.Ģ. Now, plug the bootable hard drive into your Mac. Make sure your Mac is connected to the internet.If your Mac didn’t come with macOS Big Sur, follow these steps: Reinstall macOS Big Sur on Macs that don’t ship with macOS Big Sur Shift+Option+Command+R Combo to enter Internet Recovery Mode and then install macOS 11. Just restart your Mac while holding down the button. It’s worth mentioning that if your Mac came with macOS Big Sur pre-installed, you can easily install macOS Big Sur. Reinstall macOS Big Sur on Macs That Come Preinstalled with macOS Big Sur Once done, you can exit Disk Utility from the drop-down menu in the upper left corner of the screen to return to the OS X Utilities selector. If there is a schema, select GUID Partition Map. However, if your Mac is using APFS, Choose APFS from the format list. If your Mac uses HFS+, make sure you select Mac OS Extended (Journaled) from the format list. Erase macOS Big Sur from your Macs Hard Drive. Step 1.Back up your Mac (Very Important) Step 2. When the drive is deleted, its name will change to the name you just selected. For this, we have compiled the perfect step by step guide to make the downgrading process easier. Now, enter a new name for the hard drive Like Macintosh HD.
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