- Windows 10 is Microsoft's latest operating system, unveiled in 2014 and scheduled for release in 2015. It aims to create a unified application platform for Windows, Windows Phone, and Xbox One. - Key features of Windows 10 include running on all device types with a single OS, improved gaming capabilities through DirectX 12, built-in media codecs like HEVC and FLAC, and the new Resilient File System for improved reliability. It also integrates Cortana and the new Spartan/Edge browser.