Windows 10 is a computer operating system by Microsoft. It is part of the Microsoft Windows family of operating systems. It was known as Threshold when it was being developed. Windows 10 was announced at a press event on 30 September 2014. It came out for personal computers on 29 July 2015. Windows 10 is available in different versions: Windows 10 Home, Windows 10 Pro, Windows 10 Enterprise and more. View all Windows 10 versions available at Appzstock Store here.