Hello, Brudka Marcin.
Please post a screenshot of the slmgr.vbs /dlv command window here and specify, is this your personal PC?
Windows 10 ESU licence key activation error 0xC004E016
![](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(35.2, 52%, 13%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EBM%3C/text%3E%3C/svg%3E)
Brudka Marcin
0
Reputation points
I'm having trouble activating the Win 10 ESU license on my Lenovo C440 AIO with Win10 Pro 22H2 64bit. I previously had a KMS license (picture 1) installed on the computer. I want to extend support for a year using the ESU license, and I get a message during the ESU license activation process, as shown in picture 2 (error 0xC004E016 "The Software Licencing Service reported that the product key is invalid"). There was no problem with other Lenovo C440 computers with Win 10. Please advise me how to solve the problem. Thank you.
Windows for home | Windows 10 | Licensing and activation
4 answers
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![](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(204.8, 84%, 29%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EAS%3C/text%3E%3C/svg%3E)
Alexandr S 100.9K Reputation points Independent Advisor2025-12-03T08:09:01.9133333+00:00 -
Brudka Marcin 0 Reputation points
2025-12-03T08:58:20.3466667+00:00 this is work computer in domain
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Brudka Marcin 0 Reputation points
2025-12-03T08:32:48.17+00:00 this is work computer in domain
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Alexandr S 100.9K Reputation points Independent Advisor
2025-12-03T09:17:28.3533333+00:00 Has your organization acquired the required number of ESU licenses? Check the compliance with the requirements and the correct activation of the ESU: https://learn.microsoft.com/en-us/windows/whats-new/extended-security-updates (see this and further sections).
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Brudka Marcin 0 Reputation points
2025-12-03T12:28:08.03+00:00 I just installed the ESU license on a computer with the same model and hardware configuration as the one experiencing the issue. We've compiled a list of computers requiring a Windows 10 ESU license, and there seems to be plenty of them.
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Alexandr S 100.9K Reputation points Independent Advisor
2025-12-03T15:06:58.41+00:00 In this case, I recommend creating a support request for corporate clients in accordance with your support plan. The specialist will have the opportunity to remotely connect to the "problematic" PC and study the problem "on the spot".