Not at all. Other user decided to uninstall it and it seemed like it didn’t want to go away. So I tried too. And had the same issue.
He contacted support and the above is official way to remove it.
I verified it works too. But I put Cortana back on my ST. It’s nice to have on my PC when I’m at my desk.
I haven’t figured out how to dim and increase brightness yet… I can turn on/off no problem. But that was last night for 5 min when I installed it. So I’ll give it another crack tonight to see what verbiage it wants for setting a level. If it can…