claude anthropic developer-tools ai-agents

Claude Desktop spawns 1.8 GB Hyper-V VM on every launch, even for chat-only use

github.com

June 10, 2026

4 min read

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66/100

Summary

Claude Desktop creates a 1.8 GB Hyper-V virtual machine upon every launch, regardless of whether it is used for chat-only functions. This issue has not been previously reported and occurs in the latest version of Claude Code.

Key Takeaways

The Claude Desktop app launches a 1.8 GB Hyper-V virtual machine on every start, even for chat-only use, consuming over 11% of total RAM on a 16 GB system.
The issue has been present since at least February 19, 2026, and is triggered by the Hyper-V Host Compute Service without user initiation.
There are 2,689 stale session files from previous Cowork sessions that are not automatically cleaned up, contributing to the problem.
The expected behavior is for the app to only spawn a VM when Cowork infrastructure is needed, not for chat-only sessions.

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Coverage & discussions

Hacker News · github.com

Claude Desktop spawns 1.8 GB Hyper-V VM on every launch, even for chat-only use ↗

Community discussions

Hacker News discussion ↗

Historical count: 5 · 5 saved in sample · Historical sample

Analysis ready

Community Sentiment

Negative

Positives

The integration of AI into desktop applications is evolving, pushing companies to innovate and improve local processing capabilities, which could enhance user experience.
The existence of a VM for Claude Cowork suggests a focus on sandboxing, which can enhance security and stability for users engaging in collaborative tasks.

Concerns

The requirement of a 1.8 GB Hyper-V VM for chat-only use raises concerns about resource efficiency and user accessibility, especially for those with limited hardware.
Users express frustration over the slow startup and interaction speed of the Claude Desktop app, indicating a disconnect between AI capabilities and user experience.
The inability to disable the VM at startup suggests a lack of user control and flexibility, which could deter potential users from adopting the desktop application.