Windows Update Manager gives me the error "Windows 10 Setup Has Failed to Validate the Product Key" RRS feed

  • Question

  • My key is just fine, I've even bought a new one a few days ago, yet it still gives me the error. I've ran the Microsoft System File Checker, I have the latest version of Windows, and I've deleted the temp files. I'm at a complete loss, and I can't play my games of the Microsoft Store!!
    Thursday, September 12, 2019 3:49 AM

All replies

  • Hello,

    Please refer this fix:

    Let me know if this helps!

    Note: Included link in this reply refers to blog post by a trusted Microsoft MVP. 

    Microsoft MVP (Windows and Devices for IT)

    Windows Insider MVP

    Windows Help & Support []

    Thursday, September 12, 2019 4:47 AM
  • Just to point out that Windows Product Keys are not sold separately.

    Open Command Prompt, and type slmgr /dli, hit Enter. From the output, see the partial PK and verify it's not a Windows generic key.

    Obinna C. Onwusobalu ~ MCSA MCTS MCITP

    It's all fun and games until someone divides by zero.

    Thursday, September 12, 2019 12:24 PM
  • Hi,
    For this issue, you should clean install the system. Before installing, you should add a config file to the ISO:
    Extract the ISO to a folder. Open Notepad and type in the following:
    Save this as ei.cfg in the Sources folder where you extracted the ISO. Be sure to select all files under Save as type.
    Then begin installing Windows.
    Hope it helps.

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    Friday, September 13, 2019 3:12 AM