Windows 10: New Windows 10 Pro OEM Computer not activated

Dear All,I have a brand new computer with windows 10 PRO OEM installed and for the first time in my life, the operating system is not activated; if I try to activate it from the Activation menu, it returns the following error translated fro Italian;It's not possible to activate Windows at this time because you don't have a digital or a valid product key. If you think your license is legit, click on troubleshoot problem. Error Code 0xC004C003If I click on troubleshoot problem, it will try the procedure but at the end, it returns the error that is not possible to activate windows on this comput

:)

 

Windows 10 pro

I need to change my motherboard, have windows 10 pro. When i google how to it says go to activation then add an account, my issue is there is no add an account option under activation? Or am I in the wrong window?



Not sure how to proceed, ive googled it and the same results. Do I have an OEM or? On the disk sleave it says OEI DVD?
The COA says windows 10 pro for OEM software

 

Windows 10 Activation (Insider)

I bought Windows 7 Pro OEM key from G2Play.net for 12€ to upgrade to Windows 10 Pro - worked like a charm but be advised if you buy a OEM key you can not download the Win 7 iso from microsoft and have to get it elsewhere.

 

Win 10 Pro OEM activation issue

Hello Larry,

Significant hardware changes such as replacing your hard drive or motherboard may lead to issues in activating Windows 10. To better assist you and provide you with the appropriate resolution, we would like to know a few more information. Kindly answer the
questions below:

• Did Windows 10 Pro came pre-installed with your computer?
• Do you have the Windows 10 Pro installation disc available?
• Are you getting any error messages when trying to key in your activation code?
• Were there any significant hard ware changes done on your computer?
• What were the exact troubleshooting steps you and the MS support teams have tried?

As an initial recommendation, you may check on this article and follow the steps provided to run the Activation troubleshooter:
Using the Activation troubleshooter.

We'll be waiting for your response.