Windows 10: Windows 10 Product Key Activation on another Motherboard or new pc

I want to save myself a bit of money when buying a new pc by saving £100+ and get the windows key from the Pc im using now and putting into the new pc?

:)

 

Windows 10 activation with new motherboard


I've tried contacting Microsoft support by both chat (twice) and phone, and none of it was helpful. And so I'm posting the problem here.

I have a laptop that was originally running Windows 7. I upgraded to Windows 10 last month via the free upgrade option, and things were working fine for a while. However, a motherboard issue forced me to replace the motherboard yesterday. This also required me to move the old hard drive and CPU to the new motherboard.

Now, my problem is this: while I do still have Windows 10 installed on my device, it is an evaluation copy; it is not activated as the full product. Some research told me that the free W10 upgrade is linked to the device's hardware, something I didn't know. Since I'm using a different motherboard now, Microsoft apparently doesn't recognize that I DO own a full version of W10 courtesy of the free upgrade.

So now I'm wondering whether there is a way to transfer my W10 license to the new motherboard so it will activate. And before you ask/suggest anything:

• My original sticker on the bottom of my computer with the W7 license key on it fell off a long time ago. So no, I don't have that.
• I tried contacting Dell to get my original product key, and they refused to help me because I'm out of warranty, even though what I'm asking them for is very simple.

Any help is appreciated.

 

Troubleshoot activation errors in Windows 10 after a motherboard replacement or entering a Volume License key

Technical Level : Basic

Summary

We have a troubleshooter that can help with certain activation errors you might get:

• 
  If your PC’s manufacturer replaced your motherboard under warranty
  
  • 
    Activation Error 0x803F7001
    
• 
  If you entered a Volume License product key
  
  Note For these errors, you will need a valid (non-Volume License) product key for Windows 8, 8.1, or 10 to finish the activation.
  
  • 
    0x8007007B
    
  • 
    0xC004E016
    
  • 
    0x8007232B
    
  • 
    0xC004F074
    
  • 
    0xC004F038
    

Before trying the troubleshooter, make sure you are on the most current version of Windows 10. From Start, select
Settings, then choose System, and then press
About. You should see Version 1511 listed. If you don’t see it, then click
Settings, Update & Security, Windows Update and click
Check for updates.

Once you know you’re on version 1511, download and run the troubleshooter:
http://aka.ms/diag_cssemerg79558

If you had one of the Volume License key errors, you will be asked for a new key after the troubleshooter runs.

If you have trouble running the troubleshooter, please reply below.
If you have another Activation issue, please post in the Download, Install and Activation folder of the Windows 10 support forum.

Results in Windows - Microsoft Community

Details

Activation errors after motherboard replacement

Starting with Windows 8 and continuing with Windows 8.1 and Windows 10, most PC manufactures are injecting their Windows product key into the motherboard of the PC.
This allows the PC to activate automatically when you first boot up the PC and to re-activate if the PC is ever reset or needs a clean install.
The product key in the motherboard is edition-specific and will only activate that edition of Windows (Home, Pro, etc.).

When the motherboard is replaced under warranty, Windows will detect a hardware change and look for the new product key that was included in the replaced motherboard.
Sometimes the new product key is not retrieved by Windows, and you get
Activation Error 0x803F7001. The troubleshooter will ask Windows to re- try retrieving the product key from the new motherboard and activated it.

Correcting the mistake of entering a Global Volume License key

The troubleshooter also corrects a second, less common issue.
If you searched the web, you might have found and entered a Global Volume License (GVL) Key.
GVL Keys only work for PCs in an Enterprise environment where the administrator has setup this system of licensing.
If you mistakenly entered a GVL Key, you PC will no longer accept regular product keys, and will give the activation error 0x8007007B (or even 0xC004E016, 0x8007232B, 0xC004F074, 0xC004F038).
This troubleshooter will identify the GVL Key and replace it with a regular retail default key.
Your PC will not activate yet, but now will accept normal retail and OEM product keys.

 

Can I Transfer an OEM Product Key to New PC?


I built a new PC and want to install windows 8.1. For this I need to buy a product key. I was told that OEM product keys are "married" to the motherboard for life.

But lets say I install win 8.1 and use an OEM product key yo activate it. And lets say in the future I get rid of the old motherboard and install a new motherboard. Will I be able to transfer the product key to the new motherboard? Or would I need a retail product key to transfer the key to a new PC or motherboard?