Enabling "cowork" feature triggers full PC restart without warning

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?

When enabling the "cowork" feature in the Claude desktop app on Windows 11 Pro, a dialog appeared stating it would "require a restart." I accepted, expecting the app to restart. Instead, the entire PC restarted immediately with no additional warning and no opportunity to save open work.

This caused loss of unsaved work across multiple open applications.

Steps to reproduce:

1. Open Claude desktop app settings
2. Find the "cowork" feature toggle
3. Enable it
4. A dialog appears saying the feature requires a "restart" — no mention of a full system restart
5. Confirm — the entire PC restarts immediately with no further warning

Environment: Windows 11 Pro 10.0.26200

What Should Happen?

The dialog should explicitly state "requires a full system restart" (not just "restart"). Ideally it should also prompt the user to save their work before proceeding, or require a second confirmation step that clearly communicates the system-level impact.

Error Messages/Logs

Steps to Reproduce

1. Open Claude desktop app settings
2. Find the "cowork" feature toggle
3. Enable it
4. A dialog appears saying the feature requires a "restart" — no mention of a full system restart
5. Confirm — the entire PC restarts immediately with no further warning or opportunity to save open work

Claude Model

None

Is this a regression?

Yes, this worked in a previous version

Last Working Version

_No response_

Claude Code Version

latest (Claude Desktop App, Windows 11 Pro)

Platform

Anthropic API

Operating System

macOS

Terminal/Shell

Terminal.app (macOS)

Additional Information

_No response_