Run the Windows Update Troubleshooter to help resolve the "Windows 10 update error 0x80070002".
To run the Windows Update Troubleshooter, perform the following steps.
- Press and hold the Windows (
) key, and then press the i key.
- Touch or click Update & Security.
- Touch or click Troubleshoot.
- Touch or click Windows Update and follow the prompts.
- Restart the computer after the Windows Update Troubleshooter finshes.
- Run Windows update again.

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