Device is MacBook Pro (Retina, 13-inch, Early 2015)
That specific message almost always indicates that the current installer found an older, out-dated (unsigned) version of itself in your Applications folder. Find and delete the old one, empty the Trash, and try again.
That specific message almost always indicates that the current installer found an older, out-dated (unsigned) version of itself in your Applications folder. Find and delete the old one, empty the Trash, and try again.
Your option is to download a new copy of macOS Monterey and see if you can install that one
see this link for the download
How to download and install macOS - Apple Support
I have tried to download from the App Store and get the same message saying that the install application is damaged. When I click on 'more info' in the 'Software Update' box, I'm taken to a webpage that outlines macOS Sonoma's features. I currently have the most recent version of Big Sur, version 11.7.10
I would like to upgrade my MacBook pro Monterey, but I when I try I get this message: This copy of the Install macOS Monterey application is damaged, and can't be used to install macOS. What are my options?
