This copy of the Install macOS High Sierra application is damaged, and can‘t be used to install macOS"

I tried to upgrade my MacOS 10.12.6. to macOS High Sierra 10.13.6 but I received this message " This copy of the Install macOS High Sierra application is damaged, and can‘t be used to install macOS" Could someone assist ? Thank you

Earlier Mac models

Posted on Jun 10, 2023 06:03 AM

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Question marked as Top-ranking reply

Posted on Jun 10, 2023 06:34 AM

sandaaddapetel wrote:

I tried to upgrade my MacOS 10.12.6. to macOS High Sierra 10.13.6 but I received this message " This copy of the Install macOS High Sierra application is damaged, and can‘t be used to install macOS" Could someone assist ? Thank you


Delete the installer, empty the trash and download a new installer...


If your download speed is suspect get on a faster network.



The older macOS installer on this server:

How to download macOS - Apple Support



3 replies
Question marked as Top-ranking reply

Jun 10, 2023 06:34 AM in response to sandaaddapetel

sandaaddapetel wrote:

I tried to upgrade my MacOS 10.12.6. to macOS High Sierra 10.13.6 but I received this message " This copy of the Install macOS High Sierra application is damaged, and can‘t be used to install macOS" Could someone assist ? Thank you


Delete the installer, empty the trash and download a new installer...


If your download speed is suspect get on a faster network.



The older macOS installer on this server:

How to download macOS - Apple Support



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This copy of the Install macOS High Sierra application is damaged, and can‘t be used to install macOS"

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