zhizhu
Home / developer-tools / How to Fix Windows Security Service Not Running - Windows Defender Rate Limit Error After Update Fix-Task Scheduler Connection Refused: Quick Fixes

How to Fix Windows Security Service Not Running - Windows Defender Rate Limit Error After Update Fix-Task Scheduler Connection Refused: Quick Fixes

Updated 2026-06-13 22:35:04developer-tools
How to Fix Windows Security Service Not Running - Windows Defender Rate Limit Error After Update Fix-Task Scheduler Connection Refused: Quick Fixes
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.