You mean POST, Power on self test. DOS hasn’t been a part of Windows since XP. And yeah replace the Knopfzelle (usually a CR2032) on your mobo. Your mobo is resetting everytime you power off cause the mobo isn’t getting any power. That’s what the battery is for.
I think a lot of scripts are already, at least partly written by ai these days. Has to be the reason a lot of stories and dialogue are so nonsensical and inane.