With Windows 10 arriving during the "back to school" buying season, hardware OEMs are starting to show off their new Windows 10 systems. Toshiba's embrace of Windows 10 comes in two parts: a Cortana button on the keyboard and dual array microphones. The Cortana button is the F1 key; pressing it brings up a small Cortana window, and you can speak or type to Microsoft's virtual agent to get things done.