[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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