1qazzaq1 Author

Level 1

5 points

how do I downgrade big sur to high sierra

how do I downgrade big sur to high sierra

MacBook Pro 13″, macOS 10.13

Posted on Jan 26, 2021 03:09 PM

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2 replies

Level 10

250,025 points

Jan 26, 2021 04:48 PM in response to 1qazzaq1

Do you have a Time Machine backup to Restore to/from?

https://eshop.macsales.com/blog/32972-time-machine-what-it-is-how-it-works-and-how-to-use-it-with-your-mac/

https://support.apple.com/guide/mac-help/revert-to-a-previous-macos-version-mh15216/mac

If not…

https://www.imore.com/how-downgrade-macos

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Level 6

16,716 points

Jan 26, 2021 04:07 PM in response to 1qazzaq1

There are numerous methods but the central idea must be to BOOT into the system installer. You just can't launch a system installer previous to the drive you are currently booted into....

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how do I downgrade big sur to high sierra

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