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jananhly's avatar
jananhly
Copper Contributor
Aug 17, 2026

Win11 Cannot be Activated after Changing Motherboard

I have the product key of Windows 8 Pro (Not OEM). Then I upgraded it to Windows 11 when it is free.

 

Yesterday, my computer was broken and I bought a new motherboard and CPU.

 

However, now, it said that it needs to be activated.

 

Then I contact the support. They have verified that my Windows 8 Pro key is correct and the license can be transferred to the other machine. However, they also don't know how to help me to activate. They asked me to post here to get more comprehensive support.

 

Thanks in advance!

 

 

Regards,

Janan

licensing

1 Reply

  • Jamony's avatar
    Jamony
    MCT
    Aug 23, 2026

    Replacing the motherboard changes the hardware identity tied to a Windows digital license, so reactivation is expected. Confirm that the installed edition is Windows 11 Pro; a Pro license cannot activate Home, or vice versa. Sign in with the Microsoft account linked to the activated PC, then open Settings > System > Activation > Troubleshoot. Choose “I changed hardware on this device recently,” select the old device, mark “This is the device I’m using right now,” and activate. If the device is not listed, choose Change product key and enter the retail Windows 8 Pro key that support verified. Remove that license from any other PC because a retail license can be used on only one device. Record the activation error code. If either method fails, use Contact Support in Activation and provide the error, purchase proof, and confirmation that the edition matches; community users cannot override the activation service