Fix 'Windows Security Cannot Connect to Microsoft Defender' Error - Windows Search Not Finding Files on External Drive-Resolve Windows Search Module Missing Error

Updated 2026-06-15 19:09:53backup-recovery
Fix 'Windows Security Cannot Connect to Microsoft Defender' Error - Windows Search Not Finding Files on External Drive-Resolve Windows Search Module Missing Error
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.