Windows 10: Different activation key by itself. 0xC004003 error

For some reason in the past couple days my laptop changes it's windows key by itself where is says XXXXX-XXXXX-... its a different one then what I activated my new windows with about half a year ago. What I mean is every day or not even day, hour, when I log in it says that I have to activate my windows, and there is a 0xC004003 error. What's interesting, is that where it says my product key it's a different one that I had from the start, and my windows is not pro, but it changes to enterprise altough i bought a pro from the start. I tried to run troubleshooter and nothing changed, it di

:)

 

Windows 10 will not activate Error code 0x803F7001

Possibly there can be the problem with Microsoft activation Server, so your Windows 10 is not activated. In this scenario, you need to wait and verify if it is the issue from Microsoft’s side. But if you are getting error code 0x803f7001, you can also try these steps:

1. Open Settings app. Then go to Update and security > Activation screen > Change product.
2. Type your Windows edition product key and click Next.
3. You’ll get We couldn’t activate Windows error message.
4. Retry steps 1-3 then type your 25-characters unique product key.
5. Wait for the process to complete, Windows 10 is activated.

Hope something helps this problem

 

Windows 10 will not activate Error code 0x803F7001

thanks
I activated my Windows 10 from product key Windows 7

 

Unique Situation with Error 0xC004003

Hello,

I have been doing a lot of searching on the Microsoft Community on how to solve this error. I came across a lot of threads that had issues with error 0xC004003 after doing the free Windows 10 upgrade from Windows 7 or 8. However I have not come across another
case that matches mine. So I decided to create a new post.

So here is the situation. Over the years I have created my own tower and have been upgrading the software and hardware. A few months after Windows 10 came out I did a clean install of Windows 10 home edition on one of my hard drives (I had been using Windows
XP up until this Windows 10 upgrade). Once installed I purchased a product key from the Windows Store app. Upon doing this the product key was automatically placed in the authorization portion of the Windows 10 settings. I didn't have any problems until recently.

Yesterday I came across the error 0xC004003 after seeing the Windows 10 water mark at the bottom right hand corner of my screen. To solve this issue I contacted Microsoft online chat support. During the discussion I told them I recently upgraded my processor
and motherboard. Their solution to the error was to do a clean install. So I tried the clean install of Windows 10 Home. After the clean install I still have the authorization error 0xC004003.

So I decided to do some more research. I discovered that if I purchased a retail version of a Windows 10 Home product key I shouldn't have problems with authorization after making big changes to my hardware (in my case changing the motherboard). I'm currently
at a loss as to how to fix this authorization error. Now I'm trying to search for other solutions. Also I bought my current product key only 2 - 3 months ago. So I'm really hopping I can use the solution of buying another product as an absolute last resort.

Thanks in advance for the help.