VMware Player and Device/Credential Guard are not compatible


  1. Posts : 668
    Win 10 pro
       #1

    VMware Player and Device/Credential Guard are not compatible


    I have this error with vmware w. player 15.5, is this a bug and, if possible, what does it means?

    Thanks!

    BTW this happens if I enable "core isolation", I understand core isolation is necessary to avoid hardware bugs in intel cpu.
      My Computer


  2. Posts : 913
    CP/M
       #2

    "Feature" of Defender.
    To disable device & credential guard:

    https://www.microsoft.com/en-us/down....aspx?id=53337
    - download & extract to C:\dgreadiness_v3.6
    - run powershell as admin:
    Code:
    cd C:\dgreadiness_v3.6
    Set-ExecutionPolicy AllSigned
    .\DG_Readiness_Tool_v3.6.ps1 -Disable
    - reboot
      My Computer


  3. Posts : 668
    Win 10 pro
    Thread Starter
       #3

    Hi, more simply I found that disabling core isolation and with this cmd:

    bcdedit /set hypervisorlaunchtype off

    vmware will work again, I wonder how severe is the risk of disabling core isolation... (is this feature even present in win 81) I mean is this a very unusual risk, is it remotely exploitable or only locally ) is it ok to leave core isolation off so I can use vmware?

    thanks.
      My Computer


  4. Posts : 11,206
    Windows / Linux : Arch Linux
       #4

    roy111 said:
    I have this error with vmware w. player 15.5, is this a bug and, if possible, what does it means?

    Thanks!

    BTW this happens if I enable "core isolation", I understand core isolation is necessary to avoid hardware bugs in intel cpu.
    Hi there
    VMWare are working on a few things -- for instance enabling VMWare products to run concurrently with HYPER-V so this problem will be solved in the next release (estimated Q1 2020).

    Cheers
    jimbo
      My Computer


  5. Posts : 913
    CP/M
       #5

    roy111: defender features use hyperv components so results of both methods are similar. To utilize processor vulnerabilities you need your own process running at proc so no direct remote exploit; of course it can be combined with others.

    Definitely it is your decision.
      My Computer


  6. Posts : 668
    Win 10 pro
    Thread Starter
       #6

    Given your answers i think it's clear to me what's goin on and the problem will be fixed in 2020 hopefully, thanks all!
      My Computer


 

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