Corrupted high sierra application

How do I fix this?

MacBook Air 11″, OS X 10.10

Posted on Aug 28, 2020 6:18 PM

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BDAqua

Level 10

250,259 points

Posted on Aug 28, 2020 6:54 PM

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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BDAqua

Level 10

250,259 points

Aug 28, 2020 6:54 PM in response to actressatlanta_123

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.

KiltedTim

Level 10

225,906 points

Aug 28, 2020 6:23 PM in response to actressatlanta_123

A little more information would be helpful...

Without any real information, if you believe an application is corrupted, remove and reinstall it.

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Corrupted high sierra application