Processes in Microsoft 365 for setting up Office apps, redeeming product keys, and activating licenses.
The only way to get copilot completely gone is to do what I did. I called and got a human being. I then had to ask for a refund. That allowed him to look up what is called Microsoft 365 family classic. He had to look it up by a special code. It wasn't listed as one of the regular options for a person to buy. He processed my refund and then started me on the Microsoft 365 family classic. It was something he said they were only trained on today. It seems like they've been getting lots of phone calls about this since the update hit. January 16th is when this copilot update went live for pretty much everyone.
There is no user accessible way to get rid of Copilot. None. You have to talk to a real human and get a refund on your current subscription. Then buy a new subscription with the word Classic in it.