Upgrading from Sierra to High Sierra on a 2011 imac

Just before completing upgrade it has stuck, any helpwelcome

iMac 21.5″, macOS 10.12

Posted on Sep 14, 2023 3:26 PM

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kaz-k

Level 9

51,084 points

Posted on Sep 14, 2023 7:00 PM

Hi,

If your iMac is able to start up macOS, you can upgrade from System Preferences > Software Update.

If you can't, start up from Recovery mode, then reinstall macOS on your iMac.

Use macOS Recovery on an Intel-based Mac – Apple Support (AU)

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3 replies

Top-ranking reply

kaz-k

Level 9

51,084 points

Sep 14, 2023 7:00 PM in response to Brownhairstreak

Hi,

If your iMac is able to start up macOS, you can upgrade from System Preferences > Software Update.

If you can't, start up from Recovery mode, then reinstall macOS on your iMac.

Use macOS Recovery on an Intel-based Mac – Apple Support (AU)

Sep 16, 2023 2:25 AM in response to kaz-k

After about five tries it worked perfectly, many thanks for your help, much appreciated 👍👍

Sep 14, 2023 7:45 PM in response to kaz-k

Hi,

many thanks for your help, I will give this a try

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Upgrading from Sierra to High Sierra on a 2011 imac