

If your computer does not meet the minimum requirements for Catalina or Mojave, you will not be able to install a supported version of macOS. If you are running an older OS, you can look at the hardware requirements for the currently supported versions of macOS to see if your computer is capable of running them: If your computer is running macOS 10.14 Mojave or older it will need to be upgraded – make a note of your installed macOS version and your computer’s model and year as that information will be helpful when upgrading macOS.


At the end he stated he couldn't help me and I should go to an Apple Store for support. All of the above again, with a support tech in chat. Fixing disk issues in repair mode (none were found). Manual download and install of the update. You can try updating again in the App Store after restarting."

It gets ~5% through a progress bar then pops up an error message: "The update was not installed successfully. The current pending update is "Security Update 2019-003-10.13.6." When I attempt to install the update: I'm having difficulty installing the latest update on my Mac Mini from 2011 (macmini5,3).
