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Level 1

4 points

Unable to install High Sierra

Hello, i have been trying to install High Sierra (upgrade from Sierra) but every single time i always get the following message "An error occured while preparing the installation. Try running this application again.". Could you please help?

My computer is a Macbook pro mid 2010, currently running Sierra version 10.12.6

Thank you so much in advance!

MacBook Pro 15", macOS 10.12

Posted on Mar 26, 2020 6:57 AM

Best reply

macjack

Level 10

111,180 points

Posted on Mar 26, 2020 7:00 AM

Go to your Applications and Download folders and delete any previously downloaded installers, named "Install Mac OS High Sierra" The restart your Mac and try again.

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Unable to install High Sierra

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