I thought I would bring this over here as well & it should clear things up.
Read more - Microsoft: Windows 10 will not be sold as a subscription - PC GamerAt its press event today, Microsoft announced that Windows 10 will be a free upgrade for Windows 7 and Windows 8 users during its first year of availability. There was some confusion, however, when Microsoft's Terry Myerson started talking about Windows 10 "as a service." Did that mean that after that first year of free availability, Windows 10 would cost an annual fee? I asked Myerson for clarification after the presentation, and he confirmed that there will be no additional fees attached to Windows 10, whenever you buy it.