Windows 10: 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
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:)

 

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.)

 

How do you enable the core isolation?

VT-x or on AMD it's AMD-v.

 

How do you enable the core isolation?

Here is the tutorial from Shawn: Turn On or Off Core Isolation Memory Integrity in Windows 10 Windows 10 Tutorials

Do you have VT-d(virtualization) turned on in BIOS?
Or is it VT-X?*Redface