Factorio Forums

When clicking "Update now" in the auto updater it starts downloading. At that point it should hide the buttons (Ask me later, disable updates and update now, IIRC). Clicking them when the updating started has no effect, but hiding them is nicer.

On this note, you can't close/alt+F4 the Factorio window or otherwise cancel the update process. I had to end the process via task manager.