Editor in Word

Has anyone come across Editor in Word. It suddenly appeared without warning on my laptop. I have previously been using the normal spellcheck.
I dislike Editor totally as it holds me back when I am checking my typing. There is a facility to upgrade which annoys me as well. I just want to revert to my normal spell check and get rid of Editor completely. Does anyone know how to accomplish this?
I dislike Editor totally as it holds me back when I am checking my typing. There is a facility to upgrade which annoys me as well. I just want to revert to my normal spell check and get rid of Editor completely. Does anyone know how to accomplish this?