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Fix PowerShell 404 Error When Using Invoke-WebRequest - Outlook IMAP Connection Refused: How to Fix-Sync Windows Security Settings Across Multiple PCs

Updated 2026-06-15 11:22:02developer-tools
Fix PowerShell 404 Error When Using Invoke-WebRequest - Outlook IMAP Connection Refused: How to Fix-Sync Windows Security Settings Across Multiple PCs
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.