Transferred Windows 11 not booting because of Secure Boot

Discussion in 'Windows Virtual Machine' started by EmilioF1, May 20, 2023.

  1. EmilioF1

    EmilioF1 Bit poster

    Hello, I'm on the trial period of Parallels because I'm trying to transfer the Windows installation I have on another partition to a Parallels VM. This is what I did:
    Booted Windows and followed all the suggested preparations from Installed Parallels Transport Agent and selected to use an external USB HDD. The process went on fine and quite fast.
    Then I booted back to OSX and from Parallels Desktop I added the VM, but when I try to start it I get the following error (I'm translating it from my local language, so the original English text may be slightly different):

    "Secure Boot has prevented the operating system start
    Secure Boot has detected unauthorized modifications to the firmware, to the operating system or to the UEFI drivers. To manage the Secure boot importation (maybe this is a bad translation, I guess the translated word was "setting") of Secure Boot, go to VM's configuration settings, click Hardware and expand advanced settings."
    The machine is a 2018 Intel Mac Mini.
    Thanks in advance for your help

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