[BUG] Cowork tab missing after update on Windows 11 Pro

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?

[BUG] Cowork tab missing after update on Windows 11 Pro

Preflight Checklist

• I have searched existing issues and this hasn't been reported for this version/platform combination
• I am using the latest version of the Claude desktop app

What's Wrong?
The Cowork tab is completely missing from the Claude Desktop application after the latest auto-update. It does not appear anywhere in the interface. The Cowork section is visible in Settings, but the tab itself is absent from the navigation.

Expected Behaviour
The Cowork tab should be present and accessible in the top navigation bar alongside Chat and Code.

Steps to Reproduce

1. Launch Claude Desktop on Windows 11 Pro
2. Observe that the Cowork tab is absent from the navigation
3. No error message is displayed — the tab is simply not there
4. Restarting the app and rebooting the machine does not resolve the issue

Environment

• App version: 1.3109.0 (35cbf6)
• OS: Windows 11 Pro (x64)
• Subscription: Pro
• Cowork section: visible in Settings
• Hyper-V / Virtual Machine Platform / Windows Hypervisor Platform: enabled

Additional Notes
This issue appeared after the latest auto-update. The Cowork tab was previously visible.

What Should Happen?

Cowork

Error Messages/Logs

Not

Steps to Reproduce

[BUG] Cowork tab missing after update on Windows 11 Pro

Preflight Checklist

• I have searched existing issues and this hasn't been reported for this version/platform combination
• I am using the latest version of the Claude desktop app

What's Wrong?
The Cowork tab is completely missing from the Claude Desktop application after the latest auto-update. It does not appear anywhere in the interface. The Cowork section is visible in Settings, but the tab itself is absent from the navigation.

Expected Behaviour
The Cowork tab should be present and accessible in the top navigation bar alongside Chat and Code.

Steps to Reproduce

1. Launch Claude Desktop on Windows 11 Pro
2. Observe that the Cowork tab is absent from the navigation
3. No error message is displayed — the tab is simply not there
4. Restarting the app and rebooting the machine does not resolve the issue

Environment

• App version: 1.3109.0 (35cbf6)
• OS: Windows 11 Pro (x64)
• Subscription: Pro
• Cowork section: visible in Settings
• Hyper-V / Virtual Machine Platform / Windows Hypervisor Platform: enabled

Additional Notes
This issue appeared after the latest auto-update. The Cowork tab was previously visible.

Claude Model

Sonnet (default)

Is this a regression?

Yes, this worked in a previous version

Last Working Version

_No response_

Claude Code Version

Version 1.3109.0 (35cbf6)

Platform

Other

Operating System

Windows

Terminal/Shell

Terminal.app (macOS)

Additional Information

no