After a motherboard replacement, Windows may no longer be activated because the digital license is tied to the device hardware.
For Windows 11:
- Open Start > Settings > System > Activation.
- If a valid product key is available, select Change product key and enter the 25-character key.
- If Windows was previously linked to a Microsoft account, use the Activation troubleshooter from the Activation page to reactivate after the hardware change.
- Verify that the installed edition matches the license. If the license is for Windows 11 Home, Windows 11 Home must be installed. If the wrong edition is installed, activation will fail.
If the motherboard was replaced by the original device manufacturer, the PC should reactivate automatically. If it does not, check for a COA card from the OEM and use the product key printed there.
If Windows came preinstalled on the PC, that is typically an OEM license. The provided guidance states OEM licenses are tied to the original hardware and are not transferable after a motherboard replacement. A separately purchased retail license can be transferred.
Common related activation errors after hardware changes include 0xC004F211 and 0xC004F213. In those cases, Windows may require either reactivation with the original product key, the hardware-change reactivation path in the troubleshooter, or a new license.
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