Reactivating Windows 7 after a hardware change

Dear support,

How can i reactivate Windows 7 OEM license after a hardware change and reinstalling the windows 7
I have a licensed sticker on my computer but it's not working now. 
Can you help me solved this problem

Best wishes,
Max

You don't say what hardware you changed.

This was the original link. Microsoft is altering/deleting links, but the information that was originally there remains the same (I copied it before the link disappeared)

http://www.microsoft.com/oem/en-gb/licensing/sblicensing/pages/licensing_faq.aspx#fbid=iePP5a9JaWJ

Contact Microsoft:

Activate Windows 7 or Windows 8.1 - Windows Help - Microsoft Support

When you begin activation, Windows will try to use your Internet connection to activate online. If you have problems activating online, you can activate using the phone.

___________________________________________________

If you have to use Phone Activation, read this detailed information about using that method:

Do not follow the Auto Prompts, but hold on for a real person to explain the problem to.

"How to Activate Windows 7 by Phone"

http://www.sevenforums.com/tutorials/18715-activate-windows-7-phone.html

_________________________________________________

If you have problems using that method contact Microsoft Support:

To contact Microsoft Support:

What can we help you with?

https://support.microsoft.com/en-us

Contact support        

http://windows.microsoft.com/en-us/windows/contact-support

Cheers.

I bought processor, so I had to change the motherboard. the socket did not match.

And so what, my License key just thrown into the trash?

I dont realy know about  that

<<<

If the motherboard is upgraded or replaced for reasons other than a defect, then a new computer has been created. Microsoft OEM operating system software cannot be transferred to the new computer, and the licence of new operating system software is required.

>>>

Microsoft Support will help me or not?

I bought processor, so I had to change the motherboard. the socket did not match.

And so what, my License key just thrown into the trash?

I dont realy know about  that

<<<

If the motherboard is upgraded or replaced for reasons other than a defect, then a new computer has been created. Microsoft OEM operating system software cannot be transferred to the new computer, and the licence of new operating system software is required.

>>>

Microsoft Support will help me or not?

We don't work for Microsoft.

I gave you the rules for changing Motherboards

I also gave you the advice on how to contact Microsoft.

Why haven't you contacted them?

They are the ones who say yay or nay about activation.