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I am trying to reinstall high sierra on an imac that keeps restarting...looks like a kernel problem...but command R is not working to bring up recovery window...want to reinstall os but High Sierra i can't find the full download

I am trying to reinstall high sierra on an imac that keeps restarting...looks like a kernel problem...but command R is not working to bring up recovery window...want to reinstall os but High Sierra i can't find the full download

Posted on Sep 17, 2021 4:34 AM

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Question marked as Top-ranking reply

Posted on Sep 17, 2021 5:35 AM

You can get the full installer app for macOS High Sierra here,

How to get old versions of macOS – Apple Support (UK)

Go to the Download OS section and click on macOS High Sierra

This'll redirect you to the App Store High Sierra download page

it should say Get or Download.



2 replies

Sep 17, 2021 5:03 AM in response to pal207

Exactly what year model is your iMac?

see > https://support.apple.com/en-us/HT201634


Generally you can use Internet Recovery to reinstall the original macOS or latest macOS that iMac can run.

see > https://support.apple.com/guide/mac-help/use-macos-recovery-on-an-intel-based-mac-mchl338cf9a8/mac


If it will not startup normally or in macOS Recovery?

Then the iMac may have a more serious hardware issue and you need to make a service appointment.

see > https://support.apple.com/en-us/HT201232

I am trying to reinstall high sierra on an imac that keeps restarting...looks like a kernel problem...but command R is not working to bring up recovery window...want to reinstall os but High Sierra i can't find the full download

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