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Microsoft Teams Not Responding: Slow Startup Fixes - How to Fix PowerShell Invoke-WebRequest 504 Gateway Timeout-Resolve Locked Activation File Error on Windows Upgrade

2026-06-14 08:43:23cloud-software
Microsoft Teams Not Responding: Slow Startup Fixes - How to Fix PowerShell Invoke-WebRequest 504 Gateway Timeout-Resolve Locked Activation File Error on Windows Upgrade

Final checklist

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