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Fix Windows Search Not Working (Error 404) – Practical Guide - Troubleshoot Windows Defender Connection Refused Error-Fix Windows Security Cache Full Error: Clear & Reset Steps

Updated 2026-06-14 06:45:27cloud-software
Fix Windows Search Not Working (Error 404) – Practical Guide - Troubleshoot Windows Defender Connection Refused Error-Fix Windows Security Cache Full Error: Clear & Reset Steps
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.