i changed the motherboard .how to acivate the windows

[zino]

after i fixed a new mother board in. i tried to activate my windows through
my product key which is in the tower.but nothing happened please can any one
help me thanks.

 

[Minton M]

after i fixed a new mother board in. i tried to activate my windows through
my product key which is in the tower.but nothing happened please can any one
help me thanks.

You have to call the Microsoft Activation line who will issue a code.
The hardware profile don't match once you change the motherboard so
you'll need to speak to them.