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DMD310 Author

Level 1

4 points

Updating from macOS Sierra (Version 10.12.6)

I am having difficulty updating my OS from macOS Sierra (Version 10.12.6). I have gone to the App Store to download High Sierra, and I get the message:

This copy of the Install macOS High Sierra application is damaged, and can't be used to install macOS.

Any recommendations? Thank You.

MacBook Pro 13″, macOS 10.12

Posted on Jan 18, 2022 10:27 AM

Top-ranking reply

Niel

Level 10

731,741 points

Posted on Jan 18, 2022 10:37 AM

Choose Applications from the Finder's Go menu, throw the existing installer away, and try downloading it again.

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Updating from macOS Sierra (Version 10.12.6)

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