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Error 193 (Not a valid win32 application) on installing Kernel driver on Windows 10 Anniversary Secure Boot mode RRS feed

  • Question

  • I'm trying to install Kernel drivers on Windows 10 Anniversary in Secure Boot mode, my drivers are signed by 'Microsoft Windows Hardware Compatibility Publisher'.

    I have followed all the steps properly given in the below link to sign my drivers but still it's not working.

    "https://docs.microsoft.com/en-us/windows-hardware/drivers/dashboard/attestation-signing-a-kernel-driver-for-public-release"

    This is working fine on this system if i disable secure boot.

    I have tried installing it by using code as well as from inf, in both the cases i m getting Error 193(Not a valid win32 application)

    I tried this on Hyper-V, where I ran the command msinfo32 on the system and found out the following Device Guard properties...

    Device Guard Required Security Properties - Base Virtualization Support,Secure Boot
    Device Guard Available Security Properties - Base Virtualization Support,Secure Boot,DMA Potection,UEFI Code Readonly
    Device Guard Security Services Configured - Credential Guard,Hypervisor enforced code intergity
    Device Guard Security Services Running - Credential Guard,Hypervisor enforced code intergityI ran the command msinfo32 on the system and found out the following Device Guard properties...

    I don't seem to understand where the issue is occurrng.

    Wednesday, December 6, 2017 1:20 PM