- #Downgrade mac os how to#
- #Downgrade mac os install#
- #Downgrade mac os update#
- #Downgrade mac os upgrade#
- #Downgrade mac os software#
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#Downgrade mac os how to#
Choose the external drive as your startup disk, then click ‘Restart’. Then go into the Apple menu and select System Preferences > Startup Disk. To do this, connect the bootable installer to your Mac. As a reminder, you cannot downgrade Macs using Apple silicon.
#Downgrade mac os install#
Once you've done this, you can install this version onto your computer. You must first create a boot installer for a downgraded version of macOS. Once the restore process is complete, you can use Time Machine backup to restore individual files as necessary. In this case, it would be the final version of macOS Catalina. On the list, pick the last backup made in a previous version of macOS. Next, choose your ‘Restore Source,’ which will be the name of your external device. You’ll need to click ‘Continue’ one more time. Next, choose the option, ‘Restore From Time Machine Backup’ and click ‘Continue’. As soon as the screen goes dark, hold down the ‘Command’ + ‘R’ keys until the Apple logo appears. To downgrade macOS via Time Machine, plug your Time Machine backup drive into your Mac, then restart the computer. And yet, Apple silicone doesn’t support macOS versions older than Big Sur, so the difference is irrelevant here. This process involves using the ‘Command’ + ‘R’ command, which works differently on Intel-based machines than those with Apple silicone. To use Time Machine and take your Mac back to another macOS version, use the following steps. In this case, you'd start from scratch with a new copy of macOS. Using an external USB or another type of drive to downgrade is the best choice when you don't have backup files. But again, you need a copy of your files taken before you updated to macOS Big Sur for this to work. Third-party solutions such as Carbon Copy Cloner work much in the same way. Otherwise, a downgrade using Time Machine is not an option. Taking the Time Machine route is the easiest, although this assumes you have a Time Machine backup of your system that pre-dates your installation of macOS Big Sur. You can restore through Time Machine or install macOS from a USB. There are two ways to downgrade your Mac to a previous version. This copy probably won't be used, but it's good to have in case something goes wrong during downgrading.
Before moving forward, make one final backup copy.
Ideally, you should already be backing up your computer regularly either through Time Machine or another solution. If you've decided to downgrade, be sure to back up your Mac's files. For most folks, it's not at all necessary. Therefore, you should take a deep breath and pause before taking these steps. Apple knows this, and it's probably the main reason downgrading is such a long process. These are two reasons some like to delay upgrading their machines until a bug fix (or two) is released.Įveryday Mac users have little reason to downgrade to previous macOS versions. It also takes time for outside app developers to make the necessary changes to support the new version fully.
#Downgrade mac os software#
Until the official release, the version is tested through a software testing process that sees regular beta versions released for developers and users of Apple's public beta software program.ĭespite months of testing, no operating system version is completely free of bugs. Historically, this version is first revealed at the Worldwide Developers Conference (WWDC) in June. Before getting startedĪpple releases a new version of macOS in September, October, or November each year.
#Downgrade mac os upgrade#
Whatever the reason, downgrading your Mac to a previous version of macOS is possible - although it’s not nearly as simple as the upgrade process. For example, you might find one of your most essential apps doesn’t work with Big Sur, or maybe your job requires testing apps on previous versions. Despite this, there are a few reasons you might have no choice but to downgrade to a previous macOS version. The newest macOS version, Big Sur, is one of the most feature-packed versions on record offer a nice mix of new and updated tools.
#Downgrade mac os update#
Apple makes it pain-free to update Macs to the latest version of macOS.
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