[BUG] Persistent "virtualization" banner in Claude Desktop Cowork when running under Parallels on Apple Silicon

Resolved 💬 2 comments Opened Jun 8, 2026 by CMKen-design Closed Jun 12, 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?

When running Claude Desktop inside a Parallels VM on Apple Silicon (ARM), Cowork displays a persistent banner warning that virtualization is not supported / won't work. The banner cannot be dismissed and blocks normal use.

What Should Happen?

Either the banner should be dismissible, or Cowork should function correctly under Parallels on Apple Silicon (which supports ARM natively and does not require x86 emulation).

Error Messages/Logs

Steps to Reproduce

Run Claude Desktop inside Parallels Desktop on a Mac with Apple Silicon (M1/M2/M3/M4)
Open Cowork mode. Observe the persistent banner

Claude Model

Sonnet (default)

Is this a regression?

I don't know

Last Working Version

1.11187.4 (584005)

Claude Code Version

1.11187.4 (584005)

Platform

Anthropic API

Operating System

Windows

Terminal/Shell

Terminal.app (macOS)

Additional Information

Environment

Host: Apple Silicon Mac (M4 Pro-series chip)
Virtualization: Parallels Desktop
Guest OS: Windowns 11 Pro
Claude Desktop version: 1.11187.4 (584005)

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