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Windows Update Version Mismatch Troubleshooting Checklist - How to Fix Windows Update Hanging on Restart-Troubleshooting Windows 10 Error 0xc004c003: Invalid Product Key

2026-06-13 22:50:53cloud-software
Windows Update Version Mismatch Troubleshooting Checklist - How to Fix Windows Update Hanging on Restart-Troubleshooting Windows 10 Error 0xc004c003: Invalid Product Key

Final checklist

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

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