New
#11
If you're not in the US, that could be a reason why. Cortana's not that fully developed out just yet.
Also, do make sure your mic is all set up and is at a good recoding volume for best effect.
I am in Canada but Cortana worked. That's because I select US region whenever I install W10. Not because of Cortana. Just a preference. I already shut Cortana up.
Had to post this. If you think Cortana can be a bit stubborn, here's how an error event from MS is worded! Build 10049.
I'm on build 10049 and Cortana hasn't improved much. I still have problems getting Cortana to start by voice command. If it doesn't get any better by the time Win 10 goes final I'll definitely be turning it off.