Windows 10 is an upcoming computer operating system being developed by Microsoft . First presented in April 2014 at the Build Conference, it is scheduled to be released on July 29, 2015. It is currently in public beta testing through the Windows Insider program. During its first year of availability, upgrades to Windows 10 will be offered at no charge for consumer users of genuine Windows 7 and Windows 8.1 . The goal of Windows 10 is to unify the Windows PC, Windows Phone, Windows Embedded and Xbox One product families, as well as new product categories such as the Surface Hub and HoloLens, around a common internal core. These products will share a common, Universal application architecture and Windows Store ecosystem that expands upon the Windows Runtime platform introduced by Windows 8. Windows 10 provides further integration with Microsoft services and platforms, such as the addition of Cortana, a notification system that can be synchronized between devices, and new Xbo...