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Windows Security App Not Opening? Try These Steps - Windows 11 No Internet but Wi-Fi Connected: DNS Fix-Troubleshoot Windows Defender Real-Time Protection Not Starting

Updated 2026-07-28 11:37:00developer-tools
Windows Security App Not Opening? Try These Steps - Windows 11 No Internet but Wi-Fi Connected: DNS Fix-Troubleshoot Windows Defender Real-Time Protection Not Starting
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.

More repair notes

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