Upgrade to High Sierra

Went to the App Store to upgrade to High Sierra and got the message "This copy of the Install macOS High Sierra application is damaged, and can‘t be used to install macOS. So where do I go now?

MacBook Pro 13″, macOS 10.15

Posted on Jan 2, 2021 4:58 AM

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This copy of the Install macOS High Sierra.app application is damaged, and can‘t be used to install macOS. This copy of the Install macOS High Sierra.app application is damaged, and can‘t be used to install macOS. The App Store copies gives me this error. How can I update if I can't get a good copy to update with?
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1 reply

dialabrain

Level 10

134,093 points

Jan 2, 2021 5:28 AM in response to dougmca

Delete "Install macOS High Sierra" from the Applications folder. Try again while in Safe Mode.

How to use safe mode on your Mac - Apple Support

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