Windows 10 will not be subscription based.. Microsoft confirmed it a while ago. source: http://www.pcgamer.com/microsoft-windows-10-will-not-be-sold-as-a-subscription/ (View Post)
If your building a computer then this would be good for your needs, although it is a bit over your budget. PCPartPicker part list / Price breakdown by merchant CPU: Intel Core i5-4440 3.1GHz Quad-Cor… (View Post)