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Windows Defender Error 504 Setup Guide - Why Windows Defender Fails on Ubuntu-Resolve Get-ChildItem Access Denied in PowerShell

Updated 2026-06-14 15:42:39browser-issues
Windows Defender Error 504 Setup Guide - Why Windows Defender Fails on Ubuntu-Resolve Get-ChildItem Access Denied in PowerShell
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.