[BUG] Windows 10 Pro: CoworkVMService Running but Cowork still shows Virtual Machine Platform error
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?
Environment
- OS: Windows 10 Pro
- Claude Code Version: Latest
- Platform: Windows
Bug Description
On Windows 10 Pro, the CoworkVMService is confirmed to be running (visible in Windows Services), but Cowork (Claude Code's remote development feature) still displays a "Virtual Machine Platform" error, preventing it from functioning correctly.
Steps to Reproduce
- Install Claude Code on Windows 10 Pro
- Ensure
CoworkVMServiceis running (check viaservices.msc) - Attempt to use Cowork / remote development features in Claude Code
- Observe the error message about "Virtual Machine Platform"
Expected Behavior
Since CoworkVMService is already running, Cowork should initialize successfully without displaying a Virtual Machine Platform error.
Actual Behavior
Cowork shows a "Virtual Machine Platform" error even though CoworkVMService is active and running in Windows Services.
Additional Context
- The Windows feature "Virtual Machine Platform" may or may not be explicitly enabled in Windows Features, but the service
CoworkVMServiceis confirmed running. - This issue appears to be a false positive check or an incorrect dependency validation in the Cowork startup sequence on Windows 10 Pro.
What Should Happen?
Since CoworkVMService is already running on Windows 10 Pro, Cowork should initialize successfully and work without displaying a "Virtual Machine Platform" error. The service check should correctly detect that the required VM service is active.
Error Messages/Logs
Steps to Reproduce
- Install Claude Code on Windows 10 Pro
- Ensure
CoworkVMServiceis running (verify viaservices.msc- service status should be "Running") - Open Claude Code and attempt to use the Cowork / remote development feature
- Observe that Cowork displays a "Virtual Machine Platform" error despite
CoworkVMServicebeing active
Claude Model
None
Is this a regression?
Yes, this worked in a previous version
Last Working Version
_No response_
Claude Code Version
Latest (not specified)
Platform
Anthropic API
Operating System
macOS
Terminal/Shell
Terminal.app (macOS)
Additional Information
_No response_
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