Critical Memory Leak - claude.exe consumes 4.7GB RAM during task execution

Resolved 💬 2 comments Opened Sep 3, 2025 by wootengit Closed Sep 3, 2025

Title: Critical Memory Leak - claude.exe consumes 4.7GB RAM during task execution

Bug Report:
## Environment

  • Claude Code version: 1.0.102 (latest)
  • OS: Windows 11
  • Installation: npm global install

## Issue Description
Claude Code has a severe memory leak where claude.exe consumes massive amounts of RAM (4+ GB) during normal task
execution, making the entire computer unusable.

## Steps to Reproduce

  1. Start Claude Code fresh (computer was completely off before starting)
  2. Ask Claude to perform any task
  3. Computer becomes completely unresponsive due to memory usage
  4. Check Task Manager - claude.exe shows 4,744,420 KB (4.7GB) memory usage

## Expected Behavior
Claude Code should use reasonable amounts of memory and not freeze the entire system

## Actual Behavior

  • claude.exe process balloons to 4+ GB RAM usage
  • Computer becomes completely unresponsive
  • User has to "start typing on keyboard" to get any response
  • System stutters and freezes during task execution

## Additional Context

  • This is NOT leftover processes from previous sessions
  • Happens immediately when starting fresh and requesting tasks
  • Memory usage was verified with wmic command during active session
  • Makes Claude Code completely unusable on this system

## Urgency
CRITICAL - Tool is completely unusable due to this memory leak

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