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Question: How do you resolve the "an error occurred while preparing the installation. Try running this application again."

I deleted and made back up data in my iCloud. I restarted the computer trying to reinstall Mac OS Sierra, but I kept getting an error saying "an error occurred while preparing the installation try running this application again." Please help!

MacBook Pro TouchBar and Touch ID, macOS Sierra (10.12.6), null

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Nov 16, 2017 3:43 PM in response to JorgeOrGeorge98 In response to JorgeOrGeorge98

Hi JorgeOrGeorge98!

I understand you're having some difficulty reinstalling macOS Sierra, and I'm happy to help. Please try starting the Mac in safe mode and running the installation while the Mac is in safe mode.

Use safe mode to isolate issues with your Mac

Thanks for using Apple Support Communities.


Cheers!

Nov 16, 2017 3:43 PM

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User profile for user: JorgeOrGeorge98

Question: How do you resolve the "an error occurred while preparing the installation. Try running this application again."