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Home / windows-fixes / Fix Windows Defender Proxy Error Not Working - Task Scheduler Not Running After Windows Update? Fix It Here-Windows Security Service Stopped – Antivirus Fix

Fix Windows Defender Proxy Error Not Working - Task Scheduler Not Running After Windows Update? Fix It Here-Windows Security Service Stopped – Antivirus Fix

Updated 2026-06-13 22:42:30windows-fixes
Fix Windows Defender Proxy Error Not Working - Task Scheduler Not Running After Windows Update? Fix It Here-Windows Security Service Stopped – Antivirus Fix
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.