This is the second Windows loading screen; the boot process goes from the standard Windows logo and spinner to a second, far dimmer logo and a spinner stuck, as far as I am tell, at 10 and 4 o'clock.
Caps Lock responds, and there appears to be some semblance of hard drive activity, but I tried walking away from my system for a couple hours the first time and when I came back it was still like this. Any ideas?