[BUG][Windows] Claude Code v2.0.2 hard-freezes immediately on launch (no input; must close Terminal to quit it)

Resolved 💬 4 comments Opened Oct 1, 2025 by spragginsdesigns Closed Oct 1, 2025

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?

After updating to Claude Code v2.0.2, launching claude on Windows 11 opens the TUI and then hard-freezes immediately:

  • No input is accepted.
  • Ctrl+C / Ctrl+Break do nothing.
  • I must close the Windows Terminal tab that has it running.

This did not happen on 2.0.1 for me. I reverted with:
npm i -g @anthropic-ai/claude-code@2.0.1

What Should Happen?

The TUI should accept keyboard input, respond to commands, and allow Ctrl+C to exit cleanly.

Error Messages/Logs

None printed. The UI freezes before any output appears.
claude --version prints 2.0.2 correctly, but claude doctor also freezes. Same with claude --debug

If there is a non-interactive diagnostics flag that prints and exits, I can add that output here.

Steps to Reproduce

1) claude update (or install) and confirm v2.0.2 with claude --version
2) Open Windows Terminal → PowerShell 7.5.1
3) Run claude
4) Observe: UI renders and immediately becomes unresponsive. Keystrokes have no effect. Ctrl+C does not interrupt. You must close the terminal window/tab.

Also reproduces with claude doctor.

Claude Model

Sonnet (default)

Is this a regression?

Yes, this worked in a previous version

Last Working Version

2.0.1

Claude Code Version

2.0.2

Platform

Anthropic API

Operating System

Windows

Terminal/Shell

Windows Terminal

Additional Information

Just opens like this and won't allow any input or anything:

<img width="1838" height="302" alt="Image" src="https://github.com/user-attachments/assets/96509de7-bf18-4663-b68d-a78931bce192" />

I have waited around for several minutes as well and it never responds.

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