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designfemme Author

Level 1

11 points

App Store 10.13 High Sierra download damaged

I need to upgrade my iMac OS from Sierra 10.12.6 to High Sierra 10.13, but the Apple App Store download is corrupted. Any suggestions?

Thanks, in advance!

iMac 27", macOS 10.12

Posted on Jan 3, 2020 1:25 AM

Top-ranking reply

Jeff_W.

Community Specialist

Posted on Jan 6, 2020 1:46 PM

Hi designfemme!

I understand that you're unable to update macOS due to a damaged file, and I'm happy to help. You can delete the installation file from your applications folder, then attempt to update again. You can see more about this in the article below:

If an installer says it can't be verified or was signed with a certificate that has expired

Cheers!

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App Store 10.13 High Sierra download damaged

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