Some help please

[Koko1200]

Hey guys someone can sell me or give me for free

Windows 7 Ultimate key ?

I have one before but i when i tried to active its says its not valid key 

[bitbaby]

Hey guys someone can sell me or give me for free

Windows 7 Ultimate key ?

I have one before but i when i tried to active its says its not valid key  

You can get one from here: windows.microsoft.com/en-in/windows/get-windows-product-key

Click on the "shop" and it will take you to your local microsoft shop page and you can buy one directly from there. Any other way of acquiring is illegal. If yours say it's invalid, it probably wasn't issued by Microsoft.