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Level 1

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How to update Late 2009 iMac to High Sierra.

How to update Late 2009 iMac to High Sierra.

iMac, OS X 10.11

Posted on Mar 15, 2021 7:49 AM

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Level 10

241,103 points

Posted on Mar 15, 2021 8:11 AM

Try installing 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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Level 10

241,103 points

Mar 15, 2021 8:11 AM in response to wjaxt

Try installing 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).

Reply

How to update Late 2009 iMac to High Sierra.

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