Operating System Specific Support:
Windows 8.1
Introduction on the Microsoft website: Windows 8.1 Introduction
Video guides on Lynda.com: Windows 8.1 Essential
Windows 8
Essential training on Lynda.com: Windows 8 Essential Training
Tips and tricks on Lynda.com: Windows 8 Tips and Tricks
Windows 7
Essential training on Lynda.com: Windows 7 Essential
Tips and tricks on Lynda.com: Windows 7 Tips and Tricks