claude-code - 💡(How to fix) Fix [BUG] Virtual Machine Platform not available" error on Cowork [1 comments, 2 participants]

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anthropics/claude-code#54816Fetched 2026-04-30 06:35:09
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Error Message

I'm hitting the same "Virtual Machine Platform not available" error on Cowork. Clicking the prompt to enable the feature and restarting (twice) has not resolved it. Cowork tab shows the "Virtual Machine Platform not available" error immediately on launch. Restarting after enabling the feature makes no difference. Standard Claude chat works fine — only Cowork is affected.

Error Messages/Logs

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?

Hi — adding my details to this known issue.

I'm hitting the same "Virtual Machine Platform not available" error on Cowork. Clicking the prompt to enable the feature and restarting (twice) has not resolved it.

Environment

  • OS: Windows 11 Pro, Version 25H2 (OS Build 26200.8246)
  • Claude Desktop version: 1.5354.0 (9a9e3d)
  • CPU: 12th Gen Intel Core i7-1260P (16 cores)
  • RAM: 16GB
  • Virtual Machine Platform: Enabled
  • Windows Hypervisor Platform: Enabled

Behaviour Cowork tab shows the "Virtual Machine Platform not available" error immediately on launch. Restarting after enabling the feature makes no difference. Standard Claude chat works fine — only Cowork is affected.

This appears to be the same platform detection bug reported in #32004, #29887, #27420, and #27316. Flagging here to add to the signal — this is affecting paying Pro users who cannot access a feature they're subscribed to.

Happy to provide logs or further diagnostics if helpful.

What Should Happen?

clause should launch cowork

Error Messages/Logs

Steps to Reproduce

.

Claude Model

Opus

Is this a regression?

No, this never worked

Last Working Version

No response

Claude Code Version

Version 1.5354.0 (9a9e3d)

Platform

Anthropic API

Operating System

Windows

Terminal/Shell

PowerShell

Additional Information

No response

extent analysis

TL;DR

The issue might be related to a platform detection bug, and providing logs or further diagnostics could help identify the root cause.

Guidance

  • Review the related issues (#32004, #29887, #27420, and #27316) to see if any of the suggested fixes or workarounds apply to this case.
  • Provide logs or further diagnostics to help the development team better understand the issue and potentially identify a fix.
  • Verify that the Virtual Machine Platform and Windows Hypervisor Platform are correctly enabled and configured on the system.
  • Consider reaching out to the development team or support for further assistance, as this issue appears to be affecting paying Pro users.

Notes

The issue seems to be a known problem, and the user is adding to the signal to help the development team prioritize a fix. The user is willing to provide logs or further diagnostics, which could aid in resolving the issue.

Recommendation

Apply workaround: The user can try to investigate the related issues and see if any of the suggested fixes or workarounds apply to their case, while also providing logs or further diagnostics to help the development team identify a fix.

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claude-code - 💡(How to fix) Fix [BUG] Virtual Machine Platform not available" error on Cowork [1 comments, 2 participants]