Windows 10 Product Key

[Goot]

Looking for the best place to buy a Windows 10 product key? I have Windows 10 installed and running, it is just not an authentic version. I have a lot of Amazon gift cards from the holiday's, but there are so many different versions to buy on there. Also, if there is somewhere with a good deal, I don't mind spending the money out of pocket. But again, all I need is the product key. Would the system builder OEM be a smart decision? Don't know pros and cons of the system builder version

[Altecice]

https://www.amazon.co.uk/d/kmd/Windows-10-Home-32-bit-64-bit-English-International/B012U8Y2BM/ref=sr_1_1?ie=UTF8&qid=1483204812&sr=8-1&keywords=windows%2B10&th=1

[RileyTheFox]

11 minutes ago, Goot said:

Looking for the best place to buy a Windows 10 product key? I have Windows 10 installed and running, it is just not an authentic version. I have a lot of Amazon gift cards from the holiday's, but there are so many different versions to buy on there. Also, if there is somewhere with a good deal, I don't mind spending the money out of pocket. But again, all I need is the product key. Would the system builder OEM be a smart decision? Don't know pros and cons of the system builder version

 

System builder version is for manufacturers that put the OS on many machines (the OEM license only works for so many machines). This is what I think anyways.

I believe my Windows 7 license was OEM but I'm not sure.