Failed High Sierra install - how do I prevent Mac from re-trying whenever I reboot

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Failed High Sierra install - how do I prevent Mac from re-trying whenever I reboot

I had to quit the HS install and now whenever I re-boot the Mac tries to do the install. How do I prevent this from happening?

I removed the HS installer in the Apps folder and reset the NVRAM.

Mac mini, OS X El Capitan (10.11.6), Intel Core 2 Duo, 8 GB RAM

Posted on Sep 3, 2018 12:29 PM

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Answer 1

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Leanne_68

Community Specialist

Sep 4, 2018 12:42 PM in response to Dan Hinckley

Hello Dan Hinckley,

Thanks for that info and choosing the Apple Support Communities. If I understand correctly, you had an issue installing macOS High Sierra, and now when you log into your user account your Mac tries to start the install again, even after removing the installer file from the Applications folder. First, try running First Aid on your hard drive with the built in Disk Utility tool, as this can correct simple issues like you're experiencing.

Disk Utility for Mac: Repair a disk using Disk Utility

Next, use safe mode to start up your Mac as it does the following things:

Verifies your startup disk and attempts to repair directory issues, if needed

Loads only required kernel extensions

Prevents startup items and login items from opening automatically

Disables user-installed fonts

Deletes font caches, kernel cache, and other system cache files

Log into your user account and test the issue while in safe mode and then restart normally and test the issue again.

Use safe mode to isolate issues with your Mac
Graphics performance limited in macOS Recovery, safe mode, or Guest User mode

Cheers!

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Answer 2

Dan Hinckley Author

Level 1

11 points

Sep 4, 2018 12:43 PM in response to Leanne_68

First Aid seemed to do it, though the verbose output reported no faults or repairs.

Many thanks,

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Failed High Sierra install - how do I prevent Mac from re-trying whenever I reboot

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