[BUG]

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?

Cowork tab shows "Virtual Machine Platform not available" error on Windows 11 Home 25H2.

Device: Lenovo IdeaPad Slim 3 15IRH10
OS: Windows 11 Home, Version 25H2, Build 26200.7840
Processor: 13th Gen Intel Core i5-13420H
RAM: 16GB

Steps taken:

• Virtualization enabled in BIOS (Intel VT-x confirmed ON)
• Virtual Machine Platform: Enabled
• Windows Hypervisor Platform: Enabled
• Microsoft-Hyper-V: NOT available on Windows 11 Home edition

The error message just says "restart your computer" but restarting
does not fix it. The real issue is that Hyper-V is unavailable on
Windows 11 Home. Related issues: #24918, #27384, #32233.

What Should Happen?

Cowork should either:

1. Work using Virtual Machine Platform and Windows Hypervisor

Platform (without requiring full Hyper-V), OR

1. Show a clear error message stating that Windows 11 Pro/Enterprise

is required, instead of a generic "restart your computer" message.

Error Messages/Logs

Enable-WindowsOptionalFeature : Feature name Microsoft-Hyper-V is unknown.

Claude Desktop error: "Virtual Machine Platform not available. 
Claude's workspace requires the Virtual Machine Platform on Windows. 
Enable this feature, then restart."

Steps to Reproduce

1. Install Claude Desktop on Windows 11 Home 25H2 (Build 26200.7840)
2. Enable Virtual Machine Platform via PowerShell (succeeds)
3. Enable Windows Hypervisor Platform via PowerShell (succeeds)
4. Attempt to enable Microsoft-Hyper-V — fails with "Feature name unknown"

(Hyper-V is not available on Windows 11 Home edition)

1. Restart computer
2. Open Claude Desktop and click the Cowork tab
3. Error appears: "Virtual Machine Platform not available"

Restarting does not resolve it.

Claude Model

Sonnet (default)

Is this a regression?

I don't know

Last Working Version

_No response_

Claude Code Version

1.1.5749

Platform

Anthropic API

Operating System

Windows

Terminal/Shell

PowerShell

Additional Information

This is a Claude Desktop Cowork issue, not Claude Code CLI.
Related GitHub issues: #24918, #27384, #32233

Device: Lenovo IdeaPad Slim 3 15IRH10
OS: Windows 11 Home 25H2 (Build 26200.7840)
CPU: 13th Gen Intel Core i5-13420H
RAM: 16GB

Windows 11 Home does not include Hyper-V. Many users with the
same setup are affected. Please either support Windows 11 Home
or show a clear error message about the Windows edition requirement.