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Home / developer-tools / Command Prompt Keeps Closing Immediately: Fix Guide - How to Fix Chrome Proxy Auth Failed Error-Windows Defender 504 Error Troubleshooting Guide

Command Prompt Keeps Closing Immediately: Fix Guide - How to Fix Chrome Proxy Auth Failed Error-Windows Defender 504 Error Troubleshooting Guide

2026-06-14 02:39:26developer-tools
Command Prompt Keeps Closing Immediately: Fix Guide - How to Fix Chrome Proxy Auth Failed Error-Windows Defender 504 Error Troubleshooting Guide

Final checklist

  • Confirm that the same symptom is gone after a restart or refresh.
  • Keep the smallest working change and undo temporary diagnostic settings.