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Upgrading to High Sierra?

I have MacOS Sierra 10.12.6 on my iMac and have been trying to upgrade to High Sierra. I've tried several times through the App store, but the version of High Sierra in the App Store says: "This copy of the Install macOS High Sierra.app application is damaged, and can‘t be used to install macOS." I've already tried to bypass High Sierra and download Mojave instead, but that didn't work. Can anyone help and advise on this? Thanks!

iMac 21.5″, macOS 10.12

Posted on Oct 17, 2020 9:25 AM

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Question marked as Top-ranking reply

Posted on Oct 17, 2020 10:12 AM

Hello,


Don't use FireFox for this link…


https://itunes.apple.com/app/macos-high-sierra/id1246284741?mt=12


If you get a corrupted message...

Naw, not damaged, it's just that you have an old copy already in Applications, Trash the Install MacsOS High Sierra.app in Applications then a new copy more recent version can be downloaded.

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3 replies
Question marked as Top-ranking reply

Oct 17, 2020 10:12 AM in response to butterfliesandbooks

Hello,


Don't use FireFox for this link…


https://itunes.apple.com/app/macos-high-sierra/id1246284741?mt=12


If you get a corrupted message...

Naw, not damaged, it's just that you have an old copy already in Applications, Trash the Install MacsOS High Sierra.app in Applications then a new copy more recent version can be downloaded.

Upgrading to High Sierra?

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