What to do if I cannot upgrade my macOS Big Sur to macOS Monteray? It keeps telling me cannot be installed on Macintosh HD.

I am supposed to upgrade my macOS Big Sur but it happens to ask me to upgrade to macOS Monteray. However, I could not complete the process when it keeps telling me that macOS Monterey cannot be installed on Macintosh HD. What should I do? Do I really need to upgrade to Monterey from Big Sur?

MacBook Air 13″, macOS 11.6

Posted on Nov 8, 2021 3:17 PM

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1 reply

Nov 8, 2021 3:35 PM in response to Jenny9837

use safari and click on macOS Big Sur 11

other browsers may not work with the above link.

or find the download here> How to get old versions of macOS - Apple Support

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What to do if I cannot upgrade my macOS Big Sur to macOS Monteray? It keeps telling me cannot be installed on Macintosh HD.

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