You may have zoned in on someone else's mind and read that they were using a
GUI or something. Reading minds is not a perfect science.

That poor person hit "cancel" and then the power went out maybe?
How was it that they didn't wait for it to stop working?
ASS-U-ME ING things is not a good idea.

The only people I know that are running windows are newbs. You can't get
anything done with that OS, it just gets in your way and makes you spend too
much time with data loss and rebooting. And re-installing it over and over.