[BUG] Cowork HYPERVISOR_SERVICE_ERROR 0x80370102 on Windows 10 Pro (Home upgrade) despite Hyper-V fully functional

Preflight Checklist

• [x] I have searched existing issues and this hasn't been reported yet
• [x] This is a single bug report (please file separate reports for different bugs)
• [x] I am using the latest version of Claude Code

What's Wrong?

OS: Windows 10 Pro (upgraded from Home)
Claude Desktop version: 1.1.7053.0 (MSIX install)

Error: HRESULT 0x80370102 - HYPERVISOR_SERVICE_ERROR

What works:

• Hyper-V fully enabled (all components)
• vmms and vmcompute services: Running
• CoworkVMService: Running (LocalSystem)
• HypervisorPlatform: Enabled
• bcdedit hypervisorlaunchtype: Auto
• Test VM created manually with New-VM successfully
• vm_bundles folder downloads correctly

What fails:

• VM boot fails with "Hyper-V não está instalado no host"
• App installs as MSIX even when using direct .exe installer
• vm_bundles path mismatch: app looks in %APPDATA%\Roaming\Claude but files are in MSIX package path

Log error:
HCS operation failed: HRESULT 0x80370102
Cannot create system 'cowork-vm' because Hyper-V is not installed on the host

What Should Happen?

Cowork should detect that Hyper-V is fully functional and successfully boot the VM without errors. The app should also correctly handle MSIX install paths for vm_bundles.

Error Messages/Logs

Steps to Reproduce

1. Install Claude Desktop on Windows 10 Pro (upgraded from Home) using direct .exe from claude.ai/download
2. Open Claude Desktop
3. Click on Cowork tab
4. Error appears: "A virtualização não está disponível"
5. Restarting the computer does not resolve the issue

Claude Model

None

Is this a regression?

Yes, this worked in a previous version

Last Working Version

_No response_

Claude Code Version

1.1.7053.0 (Claude Desktop)

Platform

Anthropic API

Operating System

Windows

Terminal/Shell

PowerShell

Additional Information

_No response_