[BUG] Claude code won't start / Error 3221225501 / "no_avx2 no_avx" / Bun💩..

Resolved 💬 2 comments Opened Apr 23, 2026 by needcoder Closed May 27, 2026

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?

Please return the version running through node.js (2.1.112 works fine) or fallback to the node.js version if the processor does not support avx

What Should Happen?

Claude code should run through node.js

Error Messages/Logs

Bun v1.3.13 (0d189c58) Windows x64 (baseline)
Windows v.win10_cu
Args:
Features: no_avx2 no_avx
Elapsed: 4ms | User: 15ms | Sys: 31ms
RSS:

Steps to Reproduce

claude

_error no_avx2 no_avx_

Claude Model

None

Is this a regression?

Yes, this worked in a previous version

Last Working Version

2.1.112

Claude Code Version

2.1.118

Platform

Anthropic API

Operating System

Windows

Terminal/Shell

Windows Terminal

Additional Information

_No response_

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