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how to upgrade from Sierra to Mojave? Supposdly compatible but download says it damaged?

as above...?

iMac 21.5″, macOS 10.12

Posted on Dec 30, 2020 2:07 PM

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Level 10

731,285 points

Posted on Dec 30, 2020 2:10 PM

Install any security updates from the Mac App Store and run the installer again. If that produces the same message, delete and redownload it.

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