Did you try to re-enter your product key? Please show Activation page of Settings.
Reactivate windows
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Alfonso Kraft
20
Reputation points
My motherboard recently malfunctioned causing damage to itself and my cpu. I replaced the cpu with the same SKU but i changed motherboards after learning that the one I was using had documented issues. Now I cant reactivate windows. I have tried to use the troubleshoot method but I get a message that I need to purchase a new copy. When I logged into to my windows account to view devices, it showed my new and old pc I deleted the old device in hopes that it would help activate the new one but it did not.
Thanks for your help
Windows for home | Windows 10 | Licensing and activation
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Neil D 34,300 Reputation points Volunteer Moderator2026-09-19T17:54:00.09+00:00 Deleting the old one was not the best move because you need to transfer from the old to the new setup.
Can you give some details about the licence you were using, where it came from originally.
Did you buy the licence and did you have a product key from the purchase.
Was it possibly part of the free upgrade form Windows 7/8.
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Answer accepted by question author
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(256, 10%, 34%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EIL%3C/text%3E%3C/svg%3E)
Igor Leyko
112.4K
Reputation points
Independent Advisor
1 additional answer
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Alfonso Kraft 20 Reputation points
2026-09-19T18:03:14.3666667+00:00 I figured this out. Thanks