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Fix 'Security Module Not Found' in Windows Defender - Fix Windows Security Connection Refused Due to Firewall Settings-Microsoft Store High Memory Usage: Troubleshooting Checklist

2026-06-13 15:00:25
Fix 'Security Module Not Found' in Windows Defender - Fix Windows Security Connection Refused Due to Firewall Settings-Microsoft Store High Memory Usage: Troubleshooting Checklist

Result check

  • Keep one change per test run so you know which step helped.
  • Undo temporary changes after the issue is confirmed.