Microsoft: IOMMU, VBS part of what’s causing EPYC Windows Server VMware BSODs, boot fails

Microsoft: IOMMU, VBS part of what’s causing EPYC Windows Server VMware BSODs, boot fails


Microsoft has confirmed that the latest October 2023 Patch Tuesday for Windows Server 2022 (KB5031364) is triggering blue screens of death (BSODs) upon start up failures on VMware ESXi hypervisors with the error / stop code “PNP DETECTED FATAL ERROR”.

Microsoft has identified that the issue is not affecting all systems or configurations and is isolated to the ones where AMD’s EPYC server processors are at the heart…



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