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mac os sierra

how to upgrade the software, mac os sierra 10.12,6 to 10.13. I have 21.5 inch 2011

iMac 21.5", macOS 10.12

Posted on Jan 26, 2020 5:44 PM

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Posted on Jan 26, 2020 9:05 PM

How to upgrade to macOS High Sierra

3 replies

mac os sierra

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