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Fixing 'Access Denied' Errors When Running PowerShell Scripts - How to Fix Windows Defender Connection Refused Error-How to Fix Windows Update Proxy Error with Group Policy

Updated 2026-06-15 01:31:31browser-issues
Fixing 'Access Denied' Errors When Running PowerShell Scripts - How to Fix Windows Defender Connection Refused Error-How to Fix Windows Update Proxy Error with Group Policy
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.