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Fix Windows Defender Blank Screen Error Code - Fix Nginx 404 Not Found After Changing Root Directory-OneDrive Error 0x8004de4a Troubleshooting Guide

Updated 2026-06-14 03:33:54cloud-software
Fix Windows Defender Blank Screen Error Code - Fix Nginx 404 Not Found After Changing Root Directory-OneDrive Error 0x8004de4a 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.