UX Design Tools for 2018
How We Design (Windows Phone Dev Center)
Any platform. Your languages. Your tools. Develop solutions, on your terms, using Microsoft products and services.
Creating the Windows 8 user experience - Building Windows 8 - Site Home - MSDN Blogs
Get the latest information, insights, announcements, and news from Microsoft.
Designing UX for apps
Windows Desktop UI Concept
(The Verge Forums)
Fluent UI
A collection of UX frameworks for creating beautiful, cross-platform apps that share code, design, and interaction behavior.