I take the big returns on maj 8.1 for windows! After 7 and 8 unreliable and ergonomically Strawberry, I am pleased that Microsoft has learned from its mistakes. 8.1 The interface is nice and intuitive (especially the desktop and control panel that make their return) Especially, especially, major optimization work to start-up the OS that works wonders with an SSD or hybrid. Without going until a re-adoption of IE, anyway microsoft deserves our in this version of windows.