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Virtualization-based security -- a lighter mode of Hyper-V sans real VMs -- is enabled by default on new installs on recent-enough hardware: https://techcommun

Virtualization-based security -- a lighter mode of Hyper-V sans real VMs -- is enabled by default on new installs on recent-enough hardware: https://techcommunity.microsoft.com/t5/virtualization/virtualization-based-security-enabled-by-default/ba-p/890167 https://techcommunity.microsoft.com/t5/virtualization/virtua...

AshamedCaptain 6y ago
The link you posted only contains one device and it happens to be an ARM device. Seeing the impact it still has on battery life at least on x86, I really doubt they have enabled it by default. It was not enabled by default on x86 in 2020 at least.
- smileybarry 6y ago
  That's just a blog post about the feature being deployed, of course it won't have many examples. Take any PC from the past few years and install Windows 10 x64 on it. It will have VBS enabled and hypervisors that do not support Windows Hypervisor Platform won't work. That's been my experience since at least 2017. If you click through "capable hardware" to here[1], you'll see the list of requirements for VBS, including: > Virtualization-based security (VBS) requires the Windows hypervisor, which is only supported on 64-bit IA processors with virtualization extensions, including Intel VT-X and AMD-v. So it will never be the case on x86/IA32 1: https://docs.microsoft.com/en-us/windows-hardware/design/device-experiences/oem-vbs https://docs.microsoft.com/en-us/windows-hardware/design/dev...
  - AshamedCaptain 6y ago
    Well, I'm asking because my experience is exactly the opposite. I've installed Windows countless times on systems with all the requirements and HyperV is not enabled. The day it starts being enabled, I don't even want to imagine the number of support calls.
- jrockway 6y ago
  Do you have a reference to the increased power consumption that running a hypervisor causes? This thread is the first I've heard about it, and I would like to learn more.
  - AshamedCaptain 6y ago
    No, and I also would like to find some academical test. Try it -- you can even dual boot hypervisor on/off. It's not a small effect. Around 1h extra one on "almost idle" scenarios.

AshamedCaptain 6y ago

The link you posted only contains one device and it happens to be an ARM device. Seeing the impact it still has on battery life at least on x86, I really doubt they have enabled it by default. It was not enabled by default on x86 in 2020 at least.

smileybarry 6y ago
That's just a blog post about the feature being deployed, of course it won't have many examples. Take any PC from the past few years and install Windows 10 x64 on it. It will have VBS enabled and hypervisors that do not support Windows Hypervisor Platform won't work. That's been my experience since at least 2017. If you click through "capable hardware" to here[1], you'll see the list of requirements for VBS, including: > Virtualization-based security (VBS) requires the Windows hypervisor, which is only supported on 64-bit IA processors with virtualization extensions, including Intel VT-X and AMD-v. So it will never be the case on x86/IA32 1: https://docs.microsoft.com/en-us/windows-hardware/design/device-experiences/oem-vbs https://docs.microsoft.com/en-us/windows-hardware/design/dev...
- AshamedCaptain 6y ago
  Well, I'm asking because my experience is exactly the opposite. I've installed Windows countless times on systems with all the requirements and HyperV is not enabled. The day it starts being enabled, I don't even want to imagine the number of support calls.
jrockway 6y ago
Do you have a reference to the increased power consumption that running a hypervisor causes? This thread is the first I've heard about it, and I would like to learn more.
- AshamedCaptain 6y ago
  No, and I also would like to find some academical test. Try it -- you can even dual boot hypervisor on/off. It's not a small effect. Around 1h extra one on "almost idle" scenarios.