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

[BUG] Claude Desktop spawns 1.8 GB Hyper-V VM on every launch, even for chat-only use · Issue #29045 · anthropics/claude-code

github.com

June 10, 2026

4 min read

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65/100

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.
Read original article

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.

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