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Fix Windows Update Error 0x80070643 on Windows 10 - Windows Search Database Error: Version Mismatch Fix-Reduce Windows Defender CPU Usage on Windows 11

2026-06-13 16:09:11macos-help
Fix Windows Update Error 0x80070643 on Windows 10 - Windows Search Database Error: Version Mismatch Fix-Reduce Windows Defender CPU Usage on Windows 11

Final checklist

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

More checklist guides

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