Where can I find an "undamaged" MacOS High Sierra install DMG?

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Level 1

11 points

Where can I find an "undamaged" MacOS High Sierra install DMG?

The link on the "How to get old versions of macOS - Apple Support" page https://support.apple.com/en-us/HT211683 connects to the App Store. Clicking the download button pops up the warning that the file is "damaged" and won't download. Where can I find a full copy of the High Sierra install DMG?

MacBook Pro 13″, OS X 10.10

Posted on Jan 5, 2022 1:24 PM

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Answer 1

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jouradnik Author

Level 1

11 points

Jan 5, 2022 7:10 PM in response to jouradnik

Thanks to everybody who responded, but the problem turned out to be trying to download the High Sierra installer from the App Store using an old version of the App Store that was installed on a MacBook Pro that was running MacOS Yosemite.

Moving to my MacBook Air (MacOS Monterey) and downloading the High Sierra installer through the App Store on the Air worked ... then copied the installer to an external FireWire drive and installed High Sierra on the MacBook Pro from the external drive. Install worked just fine and the MacBook Pro is now running fine under High Sierra.

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Answer 2

BDAqua

Level 10

240,281 points

Jan 5, 2022 2:12 PM in response to jouradnik

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, there are 2 cures...

Disconnect from the Internet & set the Date back to 2014, then you can run the Install MacsOS High Sierra App in Applications, so expired Certificates are not expired.

Or... trash the Install MacsOS High Sierra.app in Applications then a new copy more recent version can be downloaded.

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