Hyper-v-hypervisor 167

An IT admin could not start any VM after a Windows 11 feature update. Event Viewer showed hundreds of event 167 logs. Disabling Core Isolation (Memory Integrity) resolved it instantly. They later re-enabled it but excluded the Hyper-V virtual machine process via Group Policy.

Understanding and resolving this event is critical for users experiencing random crashes on Windows 10 or 11, particularly on systems with virtualization enabled. What is Hyper-V-Hypervisor Event 167?

The error may be caused by a specific device on a PCIe port. : Select View > Devices by Connection . hyper-v-hypervisor 167

First, let's break down the nomenclature.

Event Report: Microsoft-Windows-Hyper-V-Hypervisor (Event ID 167) This event is a An IT admin could not start any VM

: Hypervisor errors are often symptoms of underlying hardware issues. Use the Windows Memory Diagnostic to check for RAM faults Prajwal Desai Update BIOS/Firmware

bcdedit /set hypervisorlaunchtype auto

hyper-v-hypervisor 167, Hyper-V error 167, hypervisor capabilities, nested virtualization, Memory Integrity, VT-x conflict.