Upgraded my motherboard and having trouble getting my windows key

Joseph Rodriguez 0 Reputation points
2026-09-09T21:46:06.7533333+00:00

I recently upgraded my pc and now im having trouble activating my windows. How can i get this resolved?

Windows for home | Other | Licensing and activation
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  1. AI answer

    2026-09-09T21:46:20.6833333+00:00

    A motherboard replacement is treated as a significant hardware change, so Windows may no longer find the license that was previously associated with the device.

    Try this first:

    1. Make sure the PC is connected to the internet.
    2. Open Activation:
      • Windows 11: Start > Settings > System > Activation
      • Windows 10: Start > Settings > Update & Security > Activation
    3. Select Troubleshoot if it appears. This option is available only when Windows is not activated, and administrator rights are required.
    4. If the issue happened after the motherboard change, use the reactivation path shown by the troubleshooter for hardware changes.

    If a product key is available:

    • Select Change product key in Activation and enter the 25-character key.
    • If the motherboard was replaced by the original PC manufacturer, the PC should reactivate automatically. If it does not, the manufacturer may have provided a COA card with the product key.

    Important checks:

    • The installed Windows edition must match the license, such as Home vs Pro. If the wrong edition is installed, activation can fail.
    • If Windows was preinstalled on the PC and the motherboard was replaced, a new license may be required.

    If the troubleshooter does not fix it, use the activation error help page or contact customer support.

    References:

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  2. John Jefferson Doyon 87,535 Reputation points Independent Advisor
    2026-09-09T22:19:43.9366667+00:00

    Hi, @Joseph Rodriguez

    A motherboard change is treated as a major hardware change, so Windows may no longer recognize the previous activation.

    First, try the Activation Troubleshooter:

    • Go to Settings > System > Activation.
    • Click "Troubleshoot."
    • If you see "I changed hardware on this device recently," select it.
    • Sign in with the Microsoft account that was linked to your Windows license.
    • Select your PC from the device list, then choose "This is the device I'm using right now."

    If Windows still does not activate, to help narrow down the issue:

    1. What activation error code or message do you see under Settings > System > Activation?
    2. Is your Windows edition Home or Pro?
    3. Did Windows originally come preinstalled on this PC, or did you purchase a separate Retail product key/license?

    Click "Add comment" to let me know.

    Thanks!

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