Windows 10: Dell motherboard changed, lost windows Key

I changed the motherboard of my Dell XPS system. Now I no longer have my windows key. I need a new key to keep my old machine going.

:)

 

Windows 10 License (after motherboard change)

Hi Harsh,

Please be informed that your copy of Windows 10 should get activated automatically after changing the motherboard (once you enter the linked Microsoft Account details). But if you face any issues,
I suggest you to go through Phone activation to activate your Windows 10 copy.



To run Phone activation please follow the steps below:

• 
  Press Windows + R key.
  
• 
  Type slui 4 and hit enter.
  
• 
  Select the Country or
  Region.
  
• 
  Follow the on screen instructions.
  

Hope this helps. Please respond if you have any further related query.



Thank you.

 

After changing the mother board not posible to activate the new product key Dell provites me with

After Dell Change the motherboard in my laptop they provided me with a new windows product Key i try and I follow the instructions several times with no success.

I'm Getting Error Cod (0x80070057)

Cortana also not help and not possible to contact a person.

1. Any help on this subject
2. Thanks

 

Lost xp key.

i lost my XP key. And i need it.
Is there a way to find the XP key i am using now in Windows?

Thanks.