I updated unRAID last week and didn't think to try my VMs till today.

I had a template "Windows 10 Gaming 3" (that is actually running Windows 11 now) which, when I attempted to boot today, only gave me a black screen.

After several forced shutdowns via the VM Manager, to troubleshoot, I removed the NVIDIA passthru card and used VNC.

I get the Windows System Recovery terminal, and Command Line for DISKPART shows no disks or volumes are present.

I'm using a WD NVMe as passthru (no issue before the upgrade)

I created a new template (specifying Win11 this time) and set the same settings. Still the same result.

Do I need to downgrade back to 7.2.3 or is there maybe something I don't know about that can fix this?

ChatGPT kept calling out this as the probable issue:
2026-06-03T15:53:36.813915Z qemu-system-x86_64: vfio_listener_valid_section received unaligned region 0000:06:00.0 BAR 4 mmaps[0] iova=0x847fbf00 offset_within_region=0x0 qemu_real_host_page_size=0x1000
2026-06-03T15:54:19.062102Z qemu-system-x86_64: vfio_listener_valid_section received unaligned region 0000:06:00.0 BAR 4 mmaps[0] iova=0x847fbf00 offset_within_region=0x0 qemu_real_host_page_size=0x1000
2026-06-03T15:54:20.119240Z qemu-system-x86_64: vfio_listener_valid_section received unaligned region 0000:06:00.0 BAR 4 mmaps[0] iova=0x847fbf00 offset_within_region=0x0 qemu_real_host_page_size=0x1000

PCIe ACS Override setting is enabled, btw.

hagrid-diagnostics-20260603_1111.zip

I ended up rolling back to 7.2.3 and the VM loaded fine.

You can give a look at this one: https://product.unraid.net/p/7-3-0-nvme-vfio-passthrough-fails-unless-msi-x-is-relocated?b=unraid-os-bugs