Windows 10: Windows asking for reactivation

I upgraded my motherboard some months ago and windows did not ask for reactivation. I think I also used the free upgrade to windows 10 from windows 8.1 before switching. This week it asked my for the product key, which I entered the one I had for windows 8.1 and it was solved. Today it is asking my again for the product key and not accepting the key that I used. Is there any way to make this key work?

:)

 

Does Windows 7 require reactivation if...

Someone correct me if I am wrong, but I don't think its going to ask you for a key. If anything it will ask you to reactivate, which you can do online, or at the worse- over the phone. Should be no issue.

I have changed MBs in the past (and been too lazy for a fresh install) and Windows Vista and 7 RC updated the drivers and did not even require reactivation.

 

Does Windows 7 require reactivation if...

It did when I changed the mobo. However this was the RC, dunno how the final version acts.

 

windows xp installation and dual core am

could someone please list the steps they follow to install windows with a dual core processor and windows xp service pack to. I'm reletively new to amd dual core and i feel i'm missing a step. All help will be appreciated. thanx