[BUG] Cowork tab not showing on Windows 11 Pro - Claude Desktop v1.3109.0

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 does not appear in Claude Desktop app. Only Chat and Code tabs are visible. Settings > Cowork shows Dispatch is enabled, but the tab never appears in navigation.

• OS: Windows 11 Pro (Build 26200)
• App version: 1.3109.0 (35cbf6)
• Virtual Machine Platform: enabled
• Hypervisor Platform: enabled
• Virtualization: confirmed active (systeminfo shows hypervisor detected)
• Restarted app and PC multiple times - issue persists

What Should Happen?

Cowork tab should appear in the top navigation bar alongside Chat and Code tabs.

Error Messages/Logs

No error messages displayed. Cowork tab simply does not appear.

Steps to Reproduce

1. Install Claude Desktop v1.3109.0 on Windows 11 Pro
2. Enable Dispatch in Settings > Cowork
3. Enable Virtual Machine Platform and Hypervisor Platform via PowerShell
4. Restart PC
5. Launch Claude Desktop
6. Observe: only Chat and Code tabs visible, no Cowork tab

Claude Model

None

Is this a regression?

No, this never worked

Last Working Version

_No response_

Claude Code Version

1.3109.0 (35cbf6)

Platform

Anthropic API

Operating System

Windows

Terminal/Shell

PowerShell

Additional Information

<img width="361" height="383" alt="Image" src="https://github.com/user-attachments/assets/279fe607-80bb-4718-bd73-db9e664c3ede" />