User profile for user: designfemme
designfemme Author
User level: Level 1
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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 01:25 AM

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User profile for user: Jeff_W.
Jeff_W.
User level: Community Specialist

Posted on Jan 6, 2020 01:46 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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Question marked as Top-ranking reply
User profile for user: Jeff_W.
Jeff_W.
User level: Community Specialist

Jan 6, 2020 01:46 PM in response to designfemme

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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