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I am trying to add Mojave OS to my macbook pro mid 2012 with Mac OS Sierra installed, but when I attempt to download the Mojave installer from Itunes https://apps.apple.com/us/app/macos-mojave/id1398502828?mt=12 I get a message that says "This copy of the Mac OS installer is damaged and cannot be used to install Mojave."
Is there a way to download a non-damaged copy from the app store?
MacBook Pro Retina
I read this article - https://9to5mac.com/2019/10/24/macos-application-damaged/ and it mentions that after you download a new installer from the Store, then you should restart your macbook. After reboot, go to Applications > Install Mojave and try again. This worked for me to get the Installer running.
I read this article - https://9to5mac.com/2019/10/24/macos-application-damaged/ and it mentions that after you download a new installer from the Store, then you should restart your macbook. After reboot, go to Applications > Install Mojave and try again. This worked for me to get the Installer running.
Thank you for your response. I did throw them away and download another copy, but unfortunately still get the same error message. I followed the advice in this post - https://discussions.apple.com/thread/251155774. I will try again.
I do have an old copy of the Mojave Installer on my Macbook, but it says the same thing as the one I downloaded from the store.
Throw them away and download another copy.
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How do I add Mojave OS to my macbook pro mid 2012?
