[BUG]

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?

Windows 10 Pro with Hyper-V fully enabled and Cowork shows "Virtualization is not available"
Existing issue #27316 may be the same problem.
Claude is telling me to wait for an update. Oldish computer.

What Should Happen?

Cowork should detect that Hyper-V is enabled and successfully launch the workspace without showing the virtualization error.

Error Messages/Logs

Steps to Reproduce

Open Claude Desktop on Windows 10 Pro
Navigate to the Cowork tab
Observe "Virtualization is not available" error

Claude Model

None

Is this a regression?

Yes, this worked in a previous version

Last Working Version

_No response_

Claude Code Version

Claude 1.1.6452 (5afc23) 2026-03-12T19:18:15.000Z

Platform

Anthropic API

Operating System

macOS

Terminal/Shell

Terminal.app (macOS)

Additional Information

_No response_