The Secure Boot feature prevented the operating system from starting.

Discussion in 'Parallels Desktop on a Mac with Apple silicon' started by MatthewW25, May 13, 2026 at 2:27 PM.

  1. MatthewW25

    MatthewW25

    Messages:
    1
    What do I need to do to fix this?


    "The Secure Boot feature prevented the operating system from starting.
    Secure Boot found unauthorised changes to the firmware, operating system, or UEFI drivers. To manage Secure Boot settings, go to the virtual machine configuration settings, click Hardware, and expand Advanced Settings."
     
  2. Trishna Oobeyram

    Trishna Oobeyram Staff Member

    Messages:
    502
    Hello,
    We have created a support ticket to assist you further.
    Kindly check your email for future messages.
    Regards,
     
  3. BrunoAlmeida

    BrunoAlmeida Bit poster

    Messages:
    1
    I'm having the same problem: after a Windows update, the virtual machine no longer starts. I looked for previous occurrences of this issue, and the recommendation was to disable and enable the TPM module, but in version 20 this option doesn't exist.
     

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