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Level 1

13 points

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 message saying "an error occurred while preparing the installation try running this application again." I put the current date on terminal to fix this issue, but I still kept getting the same error message, Please help!

MacBook Pro

Posted on Oct 7, 2020 2:53 PM

Top-ranking reply

BDAqua

Level 10

245,165 points

Posted on Oct 8, 2020 4:15 AM

Sierra won\t Install to an APFS drive/Partition, Erase the drive MacOS Extended Journaled.

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

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