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Fix Windows Security High Memory Usage Error - Windows Defender Service Not Running Fix Guide-How to Fix Windows Security 504 Error with Third-Party AV

Updated 2026-06-14 12:43:25macos-help
Fix Windows Security High Memory Usage Error - Windows Defender Service Not Running Fix Guide-How to Fix Windows Security 504 Error with Third-Party AV
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.