I have spent many hours trying to get Cortana and my keyboard to work together correctly in the UK. If I activate Cortana successfully my keyboard does not work as it should, several keys (such as @) are wrong. If I get the keyboard working correctly Cortana does not activate and I am told she is not available in the region set.
"To use Cortana, all these settings must be set to the same language:
- Languages (this is your device language)
- Speech language
- Country or region"
I have done that many times. I have gone backwards and forwards between setting everything to UK English and to US English, and tried to set everything to UK apart from the keyboard which I set to US. After each new setup I close down and restart, as I have been advised to do. Of course, if I set the region to US I get news, prices and much else which is not what I want in the UK.
I have also tried what some others have had success with: setting everything to US, closing, relaunching and setting everything to UK. So far this has not worked for me because the keyboard is wrong again.
There must surely be a combination of settings compatible for both Cortana and the keyboard.