[BUG] Missing HCS services: vfpext on Windows 11 Pro after enabling Hyper-V
Status Closed — duplicate
Maintainer reply None cached
Activity 1 comment · opened Aug 7, 2026 · closed Aug 15, 2026
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?
Cowork tab shows "Missing HCS services: vfpext" and cannot be clicked.
OS: Windows 11 Pro Build 26200.8875
Steps tried:
- Enabled Hyper-V via DISM
- Set bcdedit hypervisorlaunchtype auto
- Restarted multiple times
- Issue persists after all steps
What Should Happen?
OS: Windows 11 Pro Build 26200.8875
Steps tried:
- Enabled Hyper-V via DISM
- Set bcdedit hypervisorlaunchtype auto
- Restarted multiple times
- Issue persists after all steps
Error Messages/Logs
Steps to Reproduce
- Open Claude Desktop on Windows 11 Pro
- Click on Cowork tab
- Tooltip shows "Missing HCS services: vfpext"
- Cowork tab is disabled and cannot be clicked
OS: Windows 11 Pro Build 26200.8875
Steps tried:
- Enabled Hyper-V via DISM
- Set bcdedit hypervisorlaunchtype auto
- Restarted multiple times
- Issue persists after all steps
Claude Model
None
Is this a regression?
Yes, this worked in a previous version
Last Working Version
_No response_
Claude Code Version
Latest
Platform
Anthropic API
Operating System
Windows
Terminal/Shell
Terminal.app (macOS)
Additional Information
_No response_
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