Windows 10

This page talks about a real product click this to see it on the Microsoft WikiWindows 10 is the latest and last Windows OS to be made (in real-life). It was released as part of its Windows NT family of operating systems. This OS is currently being constantly updated by Microsoft.

Prices in the US are $139.00 for the Home edition, $199.99 for the Pro edition, and $309.00 for the Workstaion edition. There was once where you could get Windows 10 for free if you had a PC with Windows 7, 8, or 8.1. However, that has been changed and it is no longer free.