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Level 1

4 points

How to update Late 2009 iMac to High Sierra.

iMac, OS X 10.11

Posted on Mar 15, 2021 7:49 AM

Top-ranking reply

Level 10

245,567 points

Posted on Mar 15, 2021 8:11 AM

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

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

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