claude-code - 💡(How to fix) Fix [BUG] Virtualization is not available [1 comments, 2 participants]

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anthropics/claude-code#47682Fetched 2026-04-14 05:43:33
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Error Message

Error Messages/Logs

Code Example

Claude's workspace requires Virtual Machine Platform, but the virtualization service isn't responding. Restart your computer to resolve this.
RAW_BUFFERClick to expand / collapse

Preflight Checklist

  • I have searched existing issues and this hasn't been reported yet
  • This is a single bug report (please file separate reports for different bugs)
  • I am using the latest version of Claude Code

What's Wrong?

When I have tried to use Claude Cowork option it's not working and I got this message "Virtualization is not available"

What Should Happen?

how can i do it

Error Messages/Logs

Claude's workspace requires Virtual Machine Platform, but the virtualization service isn't responding. Restart your computer to resolve this.

Steps to Reproduce

happen when try to use claude cowork

Claude Model

Sonnet (default)

Is this a regression?

Yes, this worked in a previous version

Last Working Version

No response

Claude Code Version

2.1.109

Platform

Anthropic API

Operating System

macOS

Terminal/Shell

Terminal.app (macOS)

Additional Information

<img width="944" height="677" alt="Image" src="https://github.com/user-attachments/assets/73536afa-95b4-419f-9823-1b618a6f83f1" />

extent analysis

TL;DR

The issue is likely due to the virtualization service not responding, and restarting the computer may resolve it.

Guidance

  • Verify that Virtual Machine Platform is enabled in Windows features, as it is required for Claude's workspace.
  • Check the BIOS settings to ensure that virtualization is enabled, as some systems may have it disabled by default.
  • If restarting the computer does not resolve the issue, try disabling and re-enabling the Virtual Machine Platform feature.
  • Investigate if there are any conflicts with other virtualization software or services that may be interfering with the virtualization service.

Example

No code snippet is provided as it is not relevant to the issue.

Notes

The issue may be specific to the Windows operating system and the Anthropics API platform. The fact that it is a regression and worked in a previous version suggests that there may be a compatibility issue or a change in the requirements for the virtualization service.

Recommendation

Apply workaround: Restart the computer and verify that virtualization is enabled in the BIOS settings and Windows features, as this is the suggested solution provided in the error message.

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