Hello, A friend gave me his Windows 7 Home Basic product key so I could activate this edition of Windows on my PC. I could activate successfully! But I need to know something. I think the key is OEM, so is it true that Microsoft will check if the key pairs with my hardware after, after a few days that I activated? Or it wouldn't even activate? BTW, I have a DVD another friend gave me, with all the editions of WIndows 7, and that's where I "test activated" it. It doesn't contain SP1 so I'm willing to install Windows via the Official ISO as you never know what might be inside other people's install medias. Will the Key work on SP1? Thanks!