I finally did it. I used an LLM. A couple of months ago, MS added its Copilot to Windows. I turned it off. But the latest update shoved it back in my face and tried to get me to let it use my data. So I asked it a question: How do I get rid of Copilot? It suggested I uninstall it like any other program, but MS removed that option. But Copilot went on to tell me the exact registry key to change to block it from loading, and now it's gone.