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Fix Outlook Update Error 'Cannot Start' – Practical Steps - How to Troubleshoot 404 Not Found Errors in Command Prompt-Clear Microsoft Teams Cache on Windows and Mac

Updated 2026-06-14 11:58:34windows-fixes
Fix Outlook Update Error 'Cannot Start' – Practical Steps - How to Troubleshoot 404 Not Found Errors in Command Prompt-Clear Microsoft Teams Cache on Windows and Mac
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.