unable to detect operating system

  1. KeithR1
    Thread

    "Unable to detect operating system" Guest OS macOS

    2018 MacBook Pro macOS Ventura 13.3 Parallels Desktop v17.1.16 Guest OS X Mountain Lion 10.8 I have some legacy software that integrates with...
    Thread by: KeithR1, Apr 2, 2023, 1 replies, in forum: Installation and Configuration of Parallels Desktop
  2. Bobby7
    Thread

    Installing older macOS says "unable to detect operating system"

    I have a MacBook Pro and I'm running Big Sur. I'd like to install either Yosemite or Sierra as a virtual machine. I downloaded the .dmg files but...
    Thread by: Bobby7, Jan 4, 2022, 6 replies, in forum: macOS Virtual Machine
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