Windows not activated after BIOS update, device appears as new ( Error code: 0x8007001 )

Hugo 55 Reputation points
2026-03-28T15:43:44.04+00:00

Hello, I had Windows activated with a digital license linked to my Microsoft account. After updating my BIOS, Windows is no longer activated. My PC now appears as a new device, and I cannot reactivate Windows using the troubleshooter. It does not show the option “I changed hardware on this device recently”.

I also cannot use phone activation or Installation ID, as it does not appear or does not work.

This is the same PC, I have not changed any hardware except updating the BIOS.

Can you help me reassign my Windows license to this device? ( Error code: 0x8007001 )

Windows for home | Windows 11 | Licensing and activation
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Answer accepted by question author
SD - IA 178.8K Reputation points Independent Advisor
2026-03-28T16:22:14.6233333+00:00

Hi,

Get help with Windows 10/11 Activation errors:

https://support.microsoft.com/help/10738/windows-10-get-help-with-activation-errors

https://support.microsoft.com/help/12440/windows-10-activation

To better diagnose the issue,

  1. Right-click Start button and Choose Windows Powershell(admin) and type in the following command:

slmgr.vbs /dlv

You will get a window. Take a screenshot and send it in the next reply.

  1. Run the activation troubleshooter and send us the output.

Using the Activation troubleshooter-Windows 10/11

https://support.microsoft.com/help/20527/windows-10-activation-troubleshooter

I’m eager to hear back and work together to find a solution.

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Answer accepted by question author
SD - IA 178.8K Reputation points Independent Advisor
2026-03-28T16:47:11.9933333+00:00

Thanks for getting back.

MAK keys are multiple-activation keys, which are single keys used on multiple computers. These are typically used in Businesses, when Microsoft detects a Home use it gets blocked. I am afraid to ensure you remain activated, you must buy a retail license that is valid for lifetime of Windows prodict.

If you purchased recently, maybe ask for a refund.

I hope this information helps. If you have any more questions, don't hesitate to reach out.

Otherwise, please take a moment to rate the answer. Wishing you good luck!

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  1. SD - IA 178.8K Reputation points Independent Advisor
    2026-03-28T16:38:00.28+00:00

    Hi,

    The error is due to a MAK license, which deactivates in these scenarios. Was Windows license provided by your employer?

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    1 person found this answer helpful.

  2. MUSTAFA SALAH 1,880 Reputation points
    2026-03-28T16:01:04.71+00:00

    Hello Hugo,

    More Info: https://support.microsoft.com/en-us/windows/reactivating-windows-after-a-hardware-change-2c0e962a-f04c-145b-6ead-fb3fc72b6665

    Regards,

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