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fletchek508 Author

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How to perform a Mac OS Upgrade from Mojave to Big Sur

I tried to upgrade my late 2015 iMAC running Mojave to Big Sur? The App Store says "unavailable?

Posted on Jan 25, 2022 3:31 PM

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Level 10

113,710 points

Posted on Jan 25, 2022 5:48 PM

Did you download the installer from here: How to get old versions of macOS - Apple Support

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Level 10

113,710 points

Jan 25, 2022 5:48 PM in response to fletchek508

Did you download the installer from here: How to get old versions of macOS - Apple Support

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How to perform a Mac OS Upgrade from Mojave to Big Sur

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