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notamuggle Author

Level 1

4 points

iMac (21.5-inch, Mid 2011)

My iMac (21.5-inch, Mid 2011) will not upgrade to the High Sierra 10.13.6

Posted on Aug 14, 2019 12:35 PM

Top-ranking reply

Eau Rouge

Level 8

42,590 points

Posted on Aug 14, 2019 12:55 PM

Ir should be able to upgrade to High Sierra, what OS is the Mac running at the moment, click on the Apple top left, click on About This Mac, please share a screenshot. Your Mac must be running McOS X Mountain Lion or later in order to be able to upgrade to High Sierra. If you are running an older OS you will need to upgrade to El Capitan first.

How to upgrade to macOS High Sierra - Apple Support

How to upgrade to OS X El Capitan - Apple Support

Or are you experiencing a different problem?

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iMac (21.5-inch, Mid 2011)

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