Fix Outlook Sync Issues Caused by Windows Search Service - How to Resolve OneDrive 504 Gateway Timeout-Fix 0x80070422: Windows Defender Real-Time Protection Not Starting

Updated 2026-06-14 19:40:43office-tools
Fix Outlook Sync Issues Caused by Windows Search Service - How to Resolve OneDrive 504 Gateway Timeout-Fix 0x80070422: Windows Defender Real-Time Protection Not Starting
Before changing system settings, save your work and note the exact error text so you can compare results after each step.

Extra verification checklist

  • Restart the affected app after changing permissions or configuration files.
  • Test the same workflow in a clean browser profile or a temporary user account.
  • Compare the result on another network if the error may be connection related.