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Fix Windows Defender Real-Time Protection Authentication Failed - PowerShell Failed to Initialize Properly Error Fix-Windows Terminal Error 0x80070005 – Permissions Fix

2026-06-13 17:36:01windows-fixes
Fix Windows Defender Real-Time Protection Authentication Failed - PowerShell Failed to Initialize Properly Error Fix-Windows Terminal Error 0x80070005 – Permissions Fix

Final checklist

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