Copilot exit

since a year or so copilot has been installed in my outlook. without asking permission to me. This is an unwanted function. When using the search function Copilot pops up. I do not want Microsoft to read or interfere with my emails. How to remove copilot. Microsoft ofcourse has help functions. But they are usually incomplete and too difficult for consumers. Who has a practical solution?

take for example that function tag: what is it, how and where to fil in?