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Fix Windows Defender Not Opening Error 404 - Windows Update Hanging at 100% – Troubleshooting Guide-pnpm --frozen-lockfile Troubleshooting Guide

Updated 2026-06-13 17:16:41developer-tools
Fix Windows Defender Not Opening Error 404 - Windows Update Hanging at 100% – Troubleshooting Guide-pnpm --frozen-lockfile Troubleshooting Guide
Likely symptom
Likely cause
Safe rollback

Verification route

  • Repeat the original action, not only a simplified test case.
  • Restart the app or reload the service after configuration changes.