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? [BUG] Claude Desktop spawns 1.8 GB Hyper-V VM on every launch, even for chat-only use Environment Note: This issue is specific to the Claude Desktop app (Windows), not Claude Code CLI. OS: Windows 11 Pro 25H2, Build 26200.7840 Hardware: Razer Blade 15 Base Model (Late 2020), i7-10750H, 16 GB RAM Claude Desktop: Latest version as of 2/26/2026 Windows Features: VirtualMachinePlatform enabled; Hyper-V, WSL, Docker, and Windows Sandbox are all disabled Core Isolation / Memory Integrity: Off Summary The Claude Desktop app launches a Hyper-V virtual machine (Vmmem) consuming approximately 1.8 GB of RAM every time it starts — even when the user only needs chat functionality and has no intention of using Cowork or agent mode.…