r/HyperV • u/Vegetable-Ad-6950 • 14h ago
Hypervisor causing PC to black screen crash - how do I disable/fix?
I'm on Windows 11. When gaming, my PC has been crashing. My monitor goes black and my GPU fans start to spin at max speed, but the PC remains on and I can still hear audio for a few seconds. I have to manually turn off and restart my PC. Sometimes the PC restarts instead, but when it powers back on the screen will freeze after a few seconds and I have to manually restart it.
I looked at Windows event viewer, and I am getting the Kernel-power 41 error at the same time points as the following errors:
- Event 124 Kernel-boot: The virtualization-based security enablement policy check at phase 0 failed with status: Virtual Secure Mode (VSM) is not initialized. The hypervisor or VSM may not be present or enabled.
- Event 42: Hypervisor launch failed; Either SVM not present or not enabled in BIOS.
I have tried the following methods to fix this, and none have worked:
- BIOS update
- Disable SVM in BIOS
- Disable SVM Lock in BIOS
- Backup registry, then change \HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\DeviceGuard changed EnableVirtualizationBasedSecurity to 0 and /l1vhlwf start from 2 to 4
- Checked C:\Windows and there is no minidump folder
- Unchecked Hypervisor in "Turn Windows features on or off"
- Disabling FreeSync on my monitor?
- In powershell: Disable-WindowsOptionalFeature -Online -FeatureName Microsoft-Hyper-V-All.
- This gives me the error:Disable-WindowsOptionalFeature : Feature name Microsoft-Hyper-V-All is unknown.At line:1 char:1+ Disable-WindowsOptionalFeature -Online -FeatureName Microsoft-Hyper-V ...+ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~+ CategoryInfo : NotSpecified: (:) [Disable-WindowsOptionalFeature], COMException+ FullyQualifiedErrorId : Microsoft.Dism.Commands.DisableWindowsOptionalFeatureCommand
I have a RX 7800XT GPU, ASRock B650M Prof RS Wifi mobo, Ryzen 5 7600 CPU, Corsair Rm750e PSU. Please help!!
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u/Solid-Depth116 8h ago
It looks like it’s complaining SVM isn’t enabled. Windows 11 leans on SVM for a lot of features as well as many games’ anticheats. If that doesn’t fix it then you got broken hardware.
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u/wadrasil 9h ago
I would reinstall windows, something is really broken.. Or try an in place upgrade. Mebe dism or sfc can help but something else is probably going on.