The reason I asked, with this new computer i just got, I then went and bought Microsoft Office 2010 professional via online website. When I got the product I installed it. When I tried to activate the product it informed me that the product key provided is not a valid key.

I should have known better for the price I got it for.
I ended up buying another one through a download website. It accepted the key during install but when it came to activate it claimed that the new key had been used already. (note: the instructions with the downloadable software advised that I might have to call in to Microsoft to get the product activated.)
So I called in to the Microsoft phone number listed on the activation wizard for the US and went through their process and then the product was then activated. So I did updates on Office to verify that the product is still active and good to go and it is.
My question is why when I tried to activate the last key online it stated that the key had been used already but when I went through the steps via phone activation it was successful. It causes me to think?
Any ideas? Any answers?