Had reserved a free copy of Windows 10 on, both, my laptop as well as the desktop. The laptop received its update y'day. Keeping a copy of this e-book by the side, while I go exploring the OS.
M.S. is also offering a free, online course to assist in the Enterprise-level deployment of its newest OS.
Godspeed
Also read: The Data Journalism Handbook - for bloggers & journalists alike [free e-Book]