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a required download is missing

  1. M

    Maintaining a complete Mini Farm - Mini Mac Mid 2011 Upgrade to Mavericks "A required download is missing" issue

    Greetings I run simulations for professional purposes and in the process developed a farm of Mini's. First from some older test systems I had and have now nearly built a complete set of all Mini's ever produced. I decided a while ago to also restore all OSX/MacOS versions on systems that were...
  2. O

    Macbook Pro 2011 only launching in safe boot and install "a required download is missing"

    Hello all, I recently found this macbook piled up in my Dads garage and thought id take a look at it, there was no HDD, RAM or power supply. I have installed them my self, with a new SSD and 8GB of ram, upon booting it i noticed there was a graphical issue, so I've disabled the external GPU in...