Windows 10 irritation #1: Every time I open Chrome after restarting, it tells me Chrome is not the default web browser and asks if I want it to be. I say yes every time. And then it happens again.

Windows 10 irritation #2: iTunes has disappeared from the apps menu and the icon has disappeared from the desktop. I can still open it by finding a file associated with it and opening that. But that is not exactly efficient.