Users running Windows 7 or 8.1 with the latest updates can reserve the upgrade to Windows 10, which is available until July 29, 2016, starting yesterday.
In the event you are not eligible for a free upgrade, Microsoft confirmed the price of single Windows 10 Home licenses will run $119, while Windows 10 Pro will cost $199. And for those who wish to upgrade from the Home edition to the Pro edition, a Windows 10 Pro Pack will cost $99.
Windows 10 Release Date