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Fix Outlook Data File Sync Error: Cannot Access - Troubleshooting PowerShell 404 URL Errors-OneDrive Port Already Allocated Error Fix

Updated 2026-06-16 21:32:46cloud-software
Fix Outlook Data File Sync Error: Cannot Access - Troubleshooting PowerShell 404 URL Errors-OneDrive Port Already Allocated Error Fix
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.