I HAVE A PROBLEN WITH WINDOWS 11

peter carroll 0 Reputation points
2026-09-28T03:49:48.96+00:00

PC WAS REPAIRED AND HAD A REINSTALL DONE NOW THE ACTIVATION IS UNABLE TO BE DONE AS NO PRODUCT KEY IS KNOWN BUT IT WAS PURCHASED A FEW MONTHS AGO

Windows for home | Windows 11 | Licensing and activation

3 answers

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  1. DYARI BARHAM 37,761 Reputation points Independent Advisor
    2026-09-28T08:11:04.55+00:00

    Thanks for the update.

    If they built the computer from the beginning, did they activate it, or did you purchase a license key separately? What Windows edition is currently running on your computer? Is it the same as previouse edition before performing a clean install?

    Please click Start > Type winver and hit enter> Screenshot and post it back.

    Also, go to Settings > Activation > Troubleshoot > What error code do you see? Send a screenshot along with the provided slmgr command.

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  2. DYARI BARHAM 37,761 Reputation points Independent Advisor
    2026-09-28T04:48:32.8466667+00:00

    Hi ,

    I'm Dyari. Thanks for reaching out.

    Could you please let me know where you purchased the activation key? Have you changed any computer parts during the repair? Is the operating system pre-installed on your computer, or did you purchase a retail license from Microsoft?

    To check your activation status, click Start > Run CMD as administrator > Type the command below and hit enter:

    slmgr.vbs /dlv

    Take a screenshot and post it back.

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  3. AI answer

    2026-09-28T03:50:03.4666667+00:00

    If Windows 11 was activated before the repair and reinstall, the fastest path depends on whether the device had a digital license or needs a product key.

    1. Check activation status:
      • Go to Start > Settings > System > Activation.
      • If the device previously had a digital license, Windows can reactivate automatically when connected to the internet and signed in with the Microsoft account linked to that license.
    2. If Windows was already activated before reinstalling:
      • Reinstalling the same edition of Windows 11 on the same device does not require entering a product key.
      • If prompted during setup, select I don't have a product key.
      • After installation, sign in with the Microsoft account linked to the digital license and let Windows activate online.
    3. If activation still fails:
      • Open Start > Settings > System > Troubleshoot.
      • The Activation troubleshooter is available only when Windows is not activated.
      • An internet connection is required, and an administrator account is required to run it.
    4. If the repair involved a major hardware change, especially the motherboard:
      • Go to Start > Settings > System > Activation > Change product key.
      • Enter the 25-character product key if available.
      • If the original manufacturer replaced the motherboard, the PC should reactivate automatically. If not, use the key from the COA card if one was provided.
    5. Confirm the installed edition matches the license:
      • In Settings > System > Activation, check whether the device is running Windows 11 Home or Windows 11 Pro.
      • Windows will not activate if the installed edition does not match the license.
    6. If no product key is available:
      • For a device bought new or refurbished with Windows 11, the product key may be preinstalled in the device firmware, included with the packaging, or on a Certificate of Authenticity (COA).
      • If Windows 11 was bought from Microsoft Store online, the product key is in the confirmation email with the order history.
      • If there is no digital license and no product key, a new digital license can be purchased from Start > Settings > System > Activation > Go to Store.

    If the reinstall was done on the same PC and the edition matches, the most likely fix is to connect to the internet, sign in with the Microsoft account linked to the device, then run the Activation troubleshooter if needed.


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