It's important to know the speed of your Internet connection, as Cortana along with W10 are more Internet-dependent than any earlier version of windows in the history of windows! Prior to switching ISP's (was on Verizon with a speedtest.net speed of 7Mbps), and now am on Charter with a speedtest.net speed of 65Mpbs), I couldn't even get Cortana to talk to me at all in the Tech Preview editions in late 2015 early 2016. After my ISP switch in Feb. 2016, I tried her again and she seemed to work much better as Mike Hawthorne and I both noticed and had in several discussions here. I haven't been using her much, since I misplaced my Microphone for my desktop PC, and have been busy with preparing for a big Win10 workshop...