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I am running High Sierra on a mid-2012 mac. I wanted to update to Mojave, I don't want to update to Catalina at this time on this machine. When I tried the installer, it said it was damaged. Is there still an official update to Mojave?
MacBook Pro 13″, macOS 10.13
The error message that the installer is damaged is actually the App Store detecting that there is a copy of the Install macOS Mojave.app in your Applications folder. When the App Store opens at the Mojave download page I bet it says Open.
Look in your Applications folder locate Install macOS Mojave.app, move it to the Trash, empty the Trash.
Connect your mac to your router via cable. Restart your mac, Open your Safari browser and click on this link.
How to upgrade to macOS Mojave - Apple Support
Go to Section 4 and click on Get macOS Mojave,
you will now be redirected to the App Store, this time it should say Get or Download.
Do not use the mac while it is downloading or any other devices that share the same internet connection.
Use the link from How to Upgrade to macOS Mojave using the latest Safari 13.1.2 browser for High Sierra. This should get you to a Mojave Mac App Store page, and the ability to install the upgrade.
Can I upgrade from high sierra to mojave
