Bonjour RadioTI, Voici ce que je viens de lire de la part de Microsoft pour Windows 8.1 : Modern UI experience Variable, Continuous Size of Snap Views You have more ways to see multiple apps on the screen at once. You can resize apps to nearly infinite sized windows, share the screen between two apps, or have up to three apps on each monitor. Boot to Desktop We have made configuration options available which will allow you to boot directly to the desktop in Windows 8.1. Desktop and Start Screen Improvements have been made to better support users who prefer a mouse and keyboard experience to access applications. These are just some of the key features available in Windows 8.1 We encourage you to test out and try these features when you evaluate Windows 8.1 for use both in your work environment as well as at home in your personal life. Please note that Windows Server 2012 R2 may be required in order for some of these features to be available.