Having trouble with "diagnosing your PC"

I have windows 8.1 and while it was booting up I shut down the computer several times and now when I boot up it gets stuck on the "diagnosing your PC" screen. This is my main computer so I need to figure this out asap. Any help would be very appreciated.

Stick the the windows install disk in and do the startup repair. That's what first come to my mind.