# Description Claude Desktop fails to start the internal VM (Cowork VM) on Windows 11. The VM boot process fails with a Hyper-V network endpoint creation error. ## Environment - App Version: 1.1.3189 - Platform: Windows 11 Pro (10.0.26200) - CPU: 11th Gen Intel Core i7-11700K @ 3.60GHz - RAM: 31.74 GB (16.02 GB free) - GPU: NVIDIA GeForce RTX 3070 ## Error Log The main error: This error occurs repeatedly when attempting to start the VM. The app falls back to running without the VM. ## Addit

[Desktop] VM startup failure - HcnCreateEndpoint failed (0x80070490)

Status Closed — duplicate

Maintainer reply None cached

Activity 3 comments · opened Feb 15, 2026 · closed Feb 19, 2026

Claude Desktop fails to start the internal VM (Cowork VM) on Windows 11. The VM boot process fails with a Hyper-V network endpoint creation error.

The main error:

This error occurs repeatedly when attempting to start the VM. The app falls back to running without the VM.

VM should start successfully, enabling full Claude Code functionality.

VM fails to start due to Hyper-V network endpoint creation failure.