The Problem
I ran into a failure this week while attempting to spin up a clean disposable environment using Windows Sandbox. The launch failed abruptly with error code 0x8007051A (which maps to STATUS_REVISION_MISMATCH) and a Virtual PCI (vPCI) protocol version 0x10006 mismatch.
Virtual machine requested unsupported Virtual PCI protocol version 0x10006 on 'Channel {} [VTL0]'. Error: 'Indicates two revision levels are incompatible. ' (0x8007051A). (Virtual machine ID )
This isn’t a basic GPU rendering or driver issue. It points to a structural protocol mismatch between the host’s Hyper-V virtualization stack and the Sandbox container’s base image kernel.
Even though my .wsb configuration file explicitly had <VGpu>Disable</VGpu> set, the host’s Hyper-V layer was still trying to provision and pass a virtual PCI bus architecture down to the container. The guest kernel simply couldn’t parse this interface.
The Solution
Because this negotiation failure happens in the hypervisor layer before the Sandbox container even parses its own .wsb config, we have to enforce the vGPU restriction globally at the host level.
Force Disable vGPU Sharing
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Via Group Policy (Pro/Enterprise): Open gpedit.msc and navigate to:
Computer Configuration>Administrative Templates>Windows Components>Windows SandboxFind Allow vGPU sharing for Windows Sandbox, set it to Disabled, and apply. -
Via Command Line (Home/Automation): If you are running Windows Home or prefer a quick CLI fix, run this from an elevated Command Prompt to write the policy directly to the registry:
reg add "HKLM\SOFTWARE\Policies\Microsoft\Windows\Sandbox" /v AllowVgpuSharing /t REG_DWORD /d 0 /fRestart the Host Compute Service
After applying the policy, you must restart the service to clear the existing hardware state.
Restarting vmcompute will abruptly terminate any active Windows Containers and Docker instances running on the host. Make sure to save any active work in those environments before running these commands.
net stop vmcompute
net start vmcomputeOnce the service restarted, I started the Sandbox again. The host bypassed the vPCI bus negotiation entirely, fell back gracefully to the software-based rasterizer (WARP), and the container initialized instantly.