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Fix Windows Update Slow Performance: Practical Steps - Fix Windows Defender Not Starting Due to Dependency Conflict-Windows Defender Service Won't Start Permission Denied

Updated 2026-06-14 08:33:57windows-fixes
Fix Windows Update Slow Performance: Practical Steps - Fix Windows Defender Not Starting Due to Dependency Conflict-Windows Defender Service Won't Start Permission Denied
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.