No, I said, “how” they’re closing it. If you click the OK button, the dialog box should close but you would expect something to happen. The issue is that people are unhealthily conditioned into clicking Cancel, and Flash and Java never get updated, and everything is terrible. So, Microsoft designed a dialog that is less likely to get Canceled.

Now there are reports that Windows 10 is installing when you click the X in the title bar. I have not seen this happen. Maybe this does happen, but on the other hand, I always see people closing dialog boxes without fully reading and comprehending what they say. With the scheduled install option, your unwitting “choice” could even have been days ago.

I think the situation is sort of bad, but the situation started sort of bad. "No software project is ever done, so you are always really buying a subscription, and the sooner you realize it, the sooner you can act like it." - Neal Ford. More to the point, Windows was never yours. It was always Microsoft’s. As long as you are using something that is not yours, it’s advantageous to use the latest, best-maintained version that you are able to use.

Don't Chrome and Firefox do this by default now? Automatically download an update in the background and install it without asking when you close the browser window?