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how to update to high sierra

how to update to high sierra

iMac 27″ 5K, macOS 10.13

Posted on Dec 10, 2020 7:03 PM

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Posted on Dec 10, 2020 8:41 PM

Try reinstalling this in Safe Mode, but not using Firefox...


https://itunes.apple.com/app/macos-high-sierra/id1246284741?mt=12


Safe Boot, (holding Shift key down at startup).

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how to update to high sierra

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