Cowork tab shows 'Missing HCS services: vfpext' and remains disabled despite Hyper-V being enabled and component store corruption resolved.
Cowork tab shows 'Missing HCS services: vfpext' and remains disabled despite Hyper-V being enabled and component store corruption resolved.
Problem statement normalized from the linked evidence
CANDIDATE VIEW · NOT A PUBLISHED OPPORTUNITY
01
Qualification checklist
Gate decision: Aug 15, 2026
✓
At least 3 independent users4 / 3
MET
✓
At least 2 independent discussions2 / 2
MET
✓
At least 1 supporting signal1 Workarounds · 4 Blocked workflows · Persistence
MET
02
Observed signals
Users4
Discussions2
Mentions5
Active days5
Source coverageGitHub
TrendUNKNOWN
First seenJul 06, 2026
Last seenJul 23, 2026
Why the gate is holding
No rejection reason is currently recorded.
Qualification passed. Commercial analysis may still recommend REJECT; only non-rejected, evidence-backed analyses can be published as opportunities.
03
Source evidence
5 evidence records
github · HIGH · Jul 23, 2026
[BUG] Missing HCS services: vfpext — persists after DISM, SFC, and full in-place Windows 11 reinstall
### Preflight Checklist - [x] I have searched [existing issues](https://github.com/anthropics/claude-code/issues?q=is%3Aissue%20state%3Aopen%20label%3Abug) 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? Preflight Checklist I have searched existing issues and this hasn't been reported yet (similar reports exist, e.g. #74649, #77277, #78866, #78858, but none confirm persistence a…
Thanks to @gunmakko, I managed to fix the issue in my computer. Here is my previous comment, updated with the full resolution steps. ------------------------------------------------------------------------------------ ## Environment - **OS:** Windows 11 Pro, version 25H2 (OS Build 26200.6899) - **Claude Desktop version:** 1.20186.1 (df1d8a), built 2026-07-10 - **Architecture:** x64 (AMD64) - **Account type:** Standalone Pro plan (not Team/Enterprise) ## Issue Cowork tab shows **"Missing HCS services: vfpext"** and…
## Environment - **OS:** Windows 11 Pro, version 25H2 (OS Build 26200.6899) - **Claude Desktop version:** 1.20186.1 (df1d8a), built 2026-07-10 - **Architecture:** x64 (AMD64) - **Account type:** Standalone Pro plan (not Team/Enterprise) ## Issue Cowork tab shows **"Missing HCS services: vfpext"** and remains disabled/unclickable, even after Hyper-V is fully enabled and the underlying Windows component-store corruption that was blocking Hyper-V installation has been resolved. ## Steps to reproduce 1. Fresh Claude De…
Same for me..... Here are the steps/checks i did - nothing worked: Bug: Cowork blocked — "Missing HCS services: HNS, vmcompute, vfpext" despite fully configured Hyper-V Environment: OS: Windows 11 Pro (activated) Claude Desktop: latest version CPU virtualization (Intel VT-x): Enabled in BIOS/UEFI Issue: Cowork tab is disabled with tooltip "Missing HCS services: HNS, vmcompute, vfpext" and cannot be clicked. Verification steps completed: Get-WindowsOptionalFeature -Online -FeatureName Microsoft-Hyper-V-All → State:…
[BUG] Missing HCS services: vfpext - Cowork not working on Windows 11 Pro
### Preflight Checklist - [x] I have searched [existing issues](https://github.com/anthropics/claude-code/issues?q=is%3Aissue%20state%3Aopen%20label%3Abug) 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 11 Pro (Build 22621) **Claude Desktop version:** latest **Issue:** Cowork tab shows "Missing HCS services: vfpext" and cannot be clicked. **Steps taken:** - Hype…