Windows 10: Raw-mode is unavailable courtesy of Hyper-V VirtualBox error

Discus and support Raw-mode is unavailable courtesy of Hyper-V VirtualBox error in Windows 10 News to solve the problem; [ATTACH]Many users are unable to boot VM as when they try to do the same, then receive the following error message- Failed to open a session for the... Discussion in 'Windows 10 News' started by WinClub, Jul 9, 2021.

  1. WinClub New Member

    Raw-mode is unavailable courtesy of Hyper-V VirtualBox error


    Raw-mode is unavailable courtesy of Hyper-V VirtualBox error hypervision.jpg
    Many users are unable to boot VM as when they try to do the same, then receive the following error message- Failed to open a session for the virtual machine. Raw-mode is unavailable courtesy of Hyper-V. (VERR_SUPDRV_NO_RAW_MODE_HYPER_V_ROOT). In this article, we are going to fix the error with the help of some simple solutions. Raw-mode […]

    This article Raw-mode is unavailable courtesy of Hyper-V VirtualBox error first appeared on TheWindowsClub.com.

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    WinClub, Jul 9, 2021
    #1

  2. Raw-mode is unavailable courtesy of Hyper-V

    Hi, I've been using a virtual machine for almost a year, but since Summer I've been getting an error when I try to open it (Raw-mode is unavailable courtesy of Hyper-V. (VERR_SUPDRV_NO_RAW_MODE_HYPER_V_ROOT)). I checked numerous sites about this issue
    and tried many things to make it work and I've seen many solutions pointing to Windows being the main culprit so I figured maybe someone from this forum can help me. I'am guessing one of the updates that happened during Summer messed something up.
     
    AdrianNeata, Jul 9, 2021
    #2
  3. Raw-mode is unavailable courtesy of Hyper-V

    Heh. Maybe I should be testing with VirtualBox before that?

    https://forums.virtualbox.org/viewtopic.php?t=87237&start=0

    (BING search for

    VERR_SUPDRV_NO_RAW_MODE_HYPER_V_ROOT

    )
     
    Robert Aldwinckle on forums, Jul 9, 2021
    #3
  4. Raw-mode is unavailable courtesy of Hyper-V VirtualBox error

    Raw-mode is unavailable courtesy of Hyper-V

    In fact, I did have poor performance after getting 17134.345 and not doing anything about Hyper-V. I have uninstalled it, uninstalled Hyper-V and re-installed the update. Performance is OK (except for a bizarre continual page fault symptom for DWM.exe,
    even though dispatching priority is High) I will reinstall Hyper-V later (and then check if I have your symptom).
     
    Robert Aldwinckle on forums, Jul 9, 2021
    #4
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Raw-mode is unavailable courtesy of Hyper-V VirtualBox error

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