Windows 10 was free for almost a year. It was during that period, Microsoft did nag people to upgrade to the new OS. Still there are lots of people looking to get Windows 10 for free even though it is now a paid product.
Delaying the launch of Redstone 2 of Windows
Recently Microsoft has announced that it will be delaying the launch of the Windows 10 Redstone 2 to the spring of 2017.