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My Mac is currently on MacOS High Sierra, version 10.13.6 and when I click Update Software it takes me to App store but no OS software shows availa

My Mac is currently on MacOS High Sierra, version 10.13.6 and when I click Update Software it takes me to App store but no OS software shows available. What steps are necessary to update the OS software?


iMac 21.5″, macOS 10.13

Posted on Jan 11, 2021 5:58 PM

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Question marked as Top-ranking reply

Posted on Jan 11, 2021 6:06 PM

You didn't post the model year of your iMac (from Apple menu > About this Mac).


Without my knowing that information, check the compatibly section of How to upgrade to macOS Big Sur - Apple Support

If compatible, use those instructions. If not, see: How to get old versions of macOS - Apple Support

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My Mac is currently on MacOS High Sierra, version 10.13.6 and when I click Update Software it takes me to App store but no OS software shows availa

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