Secureboot is blue screening me on one of my pc's


  1. Posts : 681
    Windows 10 x64 Pro
       #1

    Secureboot is blue screening me on one of my pc's


    So i was looking into disabling driver verification in order to test something, and realized one of my pc's was set to "Other OS" instead of "Windows UEFI" thus leaving secureboot/keys unloaded.

    I changed it to Windows UEFI (which the OS is installed as UEFI/GPT) and immediately bluescreened after exiting the bios.

    I get

    Code:
    The operating system couldnt be loaded because the digital signature of a file or one of its dependencies couldnt be verfied.
    File:\WINDOWS\System32\drivers\asstahci64.sys
    Error code: 0xc0000428
    do i have a way around this? changing out that driver then re enabling it or something?
      My Computer


  2. Posts : 38,347
    windows 10 professional version 1607 build 14393.969 64 bit
       #2

    There are log collectors used in another forum room.
    Please run V2 and upload results into this tread:
    BSOD - Posting Instructions
      My Computer


  3. Posts : 681
    Windows 10 x64 Pro
    Thread Starter
       #3

    solved.

    had to disable secureboot. roll back the drivers for the offending driver to generic and delete it from the driverstore (just the rollback didnt work) and then re enable secureboot.

    ironically the driver says its "signed" but microsoft doesnt seem to think so. tried to install it again after enabling secureboot which led to the same situation and more wasted time. the board is old (crosshair v formula z) so it is what it is.

    the driver is authenticode signed which might be where the hang up is.
      My Computer


  4. Posts : 38,347
    windows 10 professional version 1607 build 14393.969 64 bit
       #4

    Another trial and error step is to update bootmgr.
      My Computer


 

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