args: -cpu host,-hypervisor No longer boot since Windows Update 01-2026 ( KB5073723 KB5073457 KB5074109 KB5073379 ) AMD EPYC 7302p

Seems I'm encountering a bug. Host CPU is AMD 7302P ( EPYC Zen2 "Rome" ) on HPE DL325 G10. PVE 8.4 ( Enterprise version 8.4.16 ) proxmox-ve: 8.4.0 running kernel: 6.8.12-18-pve pve-manager: 8.4.16 pve-qemu-kvm: 9.2.0-7 qemu-server: 8.4.5 VM guest : Windows 10 ESU, 2019 , 2022 , 2025 , UEFI (No Secure boot ), SeaBIOS works fine with args: -cpu host,-hypervisor Once January 2026 Windows Update,…