[FEATURE] Windows: quit the app when clicking the X close button

Preflight Checklist

• [x] I have searched existing requests and this feature hasn't been requested yet
• [x] This is a single feature request (not multiple features)

Problem Statement

On Windows, clicking X on the Claude Desktop window does not quit the app. The window disappears, but Claude stays in the system tray. I have to right-click the taskbar icon and hit Exit, or kill it in Task Manager.

I do this several times a day. Close should mean close. Right now it just hides, and there is no setting to change that.

Proposed Solution

Add a setting under Settings -> Desktop app -> General:

• Quit when closing the window

When it's on, X (and Alt+F4) should fully quit the process. When it's off, keep the current hide-to-tray behavior. Default can stay off.

Alternative Solutions

Workarounds I use now:

• Taskbar right-click -> Exit
• Task Manager
• taskkill /f /im claude.exe

None of these are what X is supposed to do.

I looked at existing issues. #81958 is about making Quit easier to find, not about making X quit. #15368 and #39336 are closed. #76164 is Linux only.

Priority

Medium - Would be very helpful

Feature Category

Configuration and settings

Use Case Example

1. I finish a Claude Code session on Windows.
2. I click X, same as every other app.
3. With this setting on, X would just quit. Life is easy.

Additional Context

_No response_