CleanMyMac
In this video, you’ll find out how to downgrade from macOS Monterey.
Get CleanMyMac X here (a free trial is available):
So, to downgrade from Monterey:
1. Change the security settings ( for Macs with T2 chip or Apple silicon)
Check whether your Mac has a T2 chip:
https://support.apple.com/en-gb/HT208862
2. Create a bootable installer of Big Sur
Download macOS Big Sur installer here: https://apps.apple.com/gb/app/macos-big-sur/id1526878132?mt=12
Terminal command you’ll need:
sudo /Applications/Install macOS Big Sur.app/Contents/Resources/createinstallmedia –volume /Volumes/BigSurInstaller
3. Erase your Mac’s startup disk
4. Reinstall Big Sur
The app mentioned in this video – CleanMyMac X by MacPaw:
https://bit.ly/3BcNAuw
Detailed instruction on how to downgrade from macOS Monterey:
https://bit.ly/3yowicj
Content:
00:00 – Intro
00:19 – What is Recovery mode
00:34 – Back up your Mac
01:03 – Extra step for Macs with T2 chip or Apple silicon
02:13 – How to optimize your Mac
03:01 – Create a bootable installer of Big Sur
04:50 – Erase your startup disk
05:35 – Reinstall Big Sur (or earlier macOS)
07:01 – Restore your files from the backup
07:41 – Outro .