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How to Fix Outlook Proxy Authentication Failed Error - Change Default Terminal to PowerShell Windows 11-Fix Windows Defender Service Not Starting Error

2026-06-16 09:32:20developer-tools
How to Fix Outlook Proxy Authentication Failed Error - Change Default Terminal to PowerShell Windows 11-Fix Windows Defender Service Not Starting Error

Final checklist

  • Confirm that the same symptom is gone after a restart or refresh.
  • Keep the smallest working change and undo temporary diagnostic settings.