I will add my voice to the numerous others here who have no use for Copilot. I figured out how to turn it off in Word, but not in the desktop version of Outlook.
I don't need it, I don't want it, and I resent having it forced upon me. I agree with others who stated that customers should have had a choice about whether to add Copilot to their subscription and not had it crammed down their throats. Its in my way. I'm an intelligent human being and I don't need "help" to write an email. Its insulting and extraneous. There should be a very easy, straightforward way to simply turn it off in all Microsoft programs and apps. Instead we are all spending our valuable time and energy searching for a solution to a problem that shouldn't have been created in the first place.
If there is no response to user concerns by Microsoft, I too will be seeking other options before my subscription comes due in Dec. 2025. This is a case of technology getting so smart that human beings are dumbed down. Before you know it, young people won't be able to write a paragraph without "help" from AI. Just because its technologically possible, doesn't make it a good thing.
Perhaps AI can be helpful in some ways, but I've lived 73 years thus far and I was doing just fine without it. Yet when I was an academic librarian we had students coming into the library who couldn't figure out how to use a copy machine when there were visuals of how to do it on the machine. I found that pitiful. No problem solving ability at all. This is the damage that too much reliance on technology and smart devices is causing.