You can make a difference in the Apple Support Community!

When you sign up with your Apple Account, you can provide valuable feedback to other community members by upvoting helpful replies and User Tips.

Looks like no one’s replied in a while. To start the conversation again, simply ask a new question.

trying to update from os high sierra to monterey and getting the error messageThis copy of the Install macOS Monterey application is damaged, and can‘t be used to install macOS.

Trying to update from os high sierra to monterey and getting the error message

"This copy of the Install macOS Monterey application is damaged, and can‘t be used to install macOS."

Seen many similar cases from over the years when I searched it but wondering if there was one definitive fix that has been identified?


iMac 27″ 5K, macOS 10.13

Posted on Apr 2, 2022 7:32 AM

Reply
Question marked as Top-ranking reply

Posted on Apr 2, 2022 10:13 AM

You are getting the message that the installation file has been damaged because it has been damaged and will not load. Did you download it via Wi-Fi? If so, don't use Wi-Fi. Put the old file into the Trash and empty it. Then do a clean download using a wired Ethernet connection. It should go fine. If necessary, temporarily move the computer to use a wired Ethernet connection. If that is not possible, you may have to do multiple downloads via Wi-Fi to get an uncorrupted one that works.

2 replies
Question marked as Top-ranking reply

Apr 2, 2022 10:13 AM in response to SketchinJ

You are getting the message that the installation file has been damaged because it has been damaged and will not load. Did you download it via Wi-Fi? If so, don't use Wi-Fi. Put the old file into the Trash and empty it. Then do a clean download using a wired Ethernet connection. It should go fine. If necessary, temporarily move the computer to use a wired Ethernet connection. If that is not possible, you may have to do multiple downloads via Wi-Fi to get an uncorrupted one that works.

Apr 3, 2022 12:46 PM in response to SketchinJ

Also try upgrading in steps vice skipping macOS versions. That is upgrade to Mojave first, then Catalina, then Big Sur and finally to Monterey. SOme users have experienced problems skipping macOS versions, and even fully update one macOS version before going to the next macOS version.

You can get the older upgrades here:

How to get old versions of macOS - Apple Support

trying to update from os high sierra to monterey and getting the error messageThis copy of the Install macOS Monterey application is damaged, and can‘t be used to install macOS.

Welcome to Apple Support Community
A forum where Apple customers help each other with their products. Get started with your Apple Account.