I've written a guide to the Taskbar on Windows 10. It covers the Start menu, search, Cortana, the taskbar buttons, the notification area, and notifications. It's available here: http://vip.chowo.co.uk/wp-content/uploads/jaws/Taskbar-10-Guide.html
Any feedback is welcome, David. For answers to frequently asked questions about this list visit: http://www.jaws-users.com/help/