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Fix PowerShell Access Denied Errors on Windows 10 - Windows Defender Failed to Start – Group Policy Fix-Fix Outlook Data File Cannot Be Accessed Error

Updated 2026-06-13 19:04:06office-tools
Fix PowerShell Access Denied Errors on Windows 10 - Windows Defender Failed to Start – Group Policy Fix-Fix Outlook Data File Cannot Be Accessed 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.