Windows 10: Core isolation and Hibernation/VT

Discus and support Core isolation and Hibernation/VT in Windows 10 Ask Insider to solve the problem; Hi, I enabled the Windows core isolation on my Windows 10 machine. After reboot, two things stopped working: - Intel VT (Virtualization Technology).... Discussion in 'Windows 10 Ask Insider' started by /u/robertogl, Feb 22, 2023.

  1. /U/ROBERTOGL
    /u/robertogl Win User

    Core isolation and Hibernation/VT


    Hi,

    I enabled the Windows core isolation on my Windows 10 machine. After reboot, two things stopped working:

    - Intel VT (Virtualization Technology). Both VMWare and Virtualbox were not able to use it anymore. Of course, nothing else changed except the Core Isolation option.

    - Hibernation: after enabling Core Isolation, putting the device in hibernation required administrator privileges. Also, it didn't actually work. Even if the screen was showing 'Computer entering hibernation', removing the power was causing Windows to lose the saved state.



    Immediately after disabling Core Isolation, both features started working again.

    So, the question here is: is this normal? It appears to me that VT and hibernation are 'important features' so it seems strange that they break with core isolation enabled.

    Thanks!

    submitted by /u/robertogl
    [link] [comments]

    :)
     
    /u/robertogl, Feb 22, 2023
    #1
  2. QUIMBY
    Quimby Win User

    Core isolation and memory integrity - UEFI settings (vt-d)

    Hi folks.
    A week ago I migrated to Windows 10 from Windows 7 on a well aged ivy bridge system. So far everything went very well and I'm glad I finally made the step. I'm just "breeding" over a subject that I just can't seem to find any hard information about.

    Under "core-isolation" I activated the point "memory integrity", that wasn't activated after a clean install. It seems to work just fine. No problem whatsoever so far.
    I have vt-x and vt-d activated in UEFI and I understand that vt-x obviously is essential for this feature. But what about vt-d? Does Windows 10 utilize this feature in any way for security purposes or can it be disabled? (Or the other way round, does it have to be disabled for some reason I don't know.)
     
    Quimby, Feb 22, 2023
    #2
  3. SLICENDICE
    slicendice Win User
    slicendice, Feb 22, 2023
    #3
  4. CLIFF S
    Cliff S Win User

    Core isolation and Hibernation/VT

    Cliff S, Feb 22, 2023
    #4
Thema:

Core isolation and Hibernation/VT

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