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Fix Windows Security Blank Screen by Resetting the App - VS Code Jupyter Token Not Working – How to Fix-How to Resolve Defender 504 Configuration Error

Updated 2026-06-13 12:55:22office-tools
Fix Windows Security Blank Screen by Resetting the App - VS Code Jupyter Token Not Working – How to Fix-How to Resolve Defender 504 Configuration Error
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.