My computer was running fine. I booted down to plug in a new power strip. When I booted back up, it turns on and hangs on the Dell screen with the progress bar just past the 1/3 point. I've tried this several times, exactly the same result.
I don't see a way to post a screenshot (picture taken by my tablet) or I would.
It never was directly connected to the wall. That's bad power management. And it never was connected directly ti the power strip. But yes, I restored it to its original power configuration. It accomplished nothing.
The most likely problem based on its behavior is a loose RAM chip or a bad CMOS battery. I have yet to open my computer and explore these possibilities.