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Home / windows-fixes / Fix PowerShell Connection Refused on Localhost - Resolve Windows Defender Access Denied on Ubuntu in WSL-Fix Windows Defender 502 Bad Gateway: Tool Usage Tips

Fix PowerShell Connection Refused on Localhost - Resolve Windows Defender Access Denied on Ubuntu in WSL-Fix Windows Defender 502 Bad Gateway: Tool Usage Tips

2026-06-13 23:20:14windows-fixes
Fix PowerShell Connection Refused on Localhost - Resolve Windows Defender Access Denied on Ubuntu in WSL-Fix Windows Defender 502 Bad Gateway: Tool Usage Tips

Final checklist

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