Windows 8.1 running as a Hyper-V VM on Windows 11 24H2 Host - Secure boot problem

  • Thread starter Thread starter Logan Gardner
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Logan Gardner

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I have a problem on Windows 11 24H2 with my Hyper-V host. When I install a fresh copy of Windows 8.1, I cannot turn Secure Boot on and be able to boot the VM, it can have secure boot on when I install from the ISO image, but once it's installed to the virtual hard drive, I have to disable secure boot or else I can't boot, TPM seems fine. Does the new configuration version 12.0 for Hyper-V virtual machines no longer have working secure boot on Windows 8.1 VM's?

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