Windows apps for business – Develop, deploy, and manage new mobile apps easier and faster, across PC and Phone (commonality of app platform, same tools, consistent user experience, easy portability).Best business tablets and PCs – Enhanced user experience (improved multi-tasking, multi-monitor support, and mouse and keyboard navigation), boot to desktop, new Search experience, support for latest hardware innovation (processors, InstantGo, displays, smaller tablets, NFC, biometrics).Windows 8.1 supports product key activation: