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EzE3 Author

Level 1

4 points

High sierra download not working on sierra

I am attempting to download the a program on my old work computer that is running Sierra 10.12.6 and when I attempted to download High Sierra, which I believe I ended up being able to download an update to High Sierra and not the actual operating system, I am consistently getting a message saying I must download 10.13 first. Every time I have attempted to download High Sierra, I'm getting an error message saying "the copy of the install macOS High Sierra application is damaged, and can't be used to install macOS." Any idea how to work around this?

iMac 27″, macOS 10.15

Posted on Apr 24, 2021 8:18 PM

Top-ranking reply

PRP_53

Level 10

91,741 points

Posted on Apr 25, 2021 2:47 AM

How to get old versions of macOS. In the next page are direct links for several older version of macOS. Just be sure to Only use Safari to start the download of the Full Installer as Others may not work.

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High sierra download not working on sierra

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