MacBook Pro won’t finish the start up process
I have tried every trouble shooting key combination when I turn my Mac on, but it still does not complete the start up process. I can see the Apple logo and the progress bar, it gets half way through the progress bar and then takes me to a dark blue/gray screen with nothing on it and just sits there until I turn it off. The only key combination that has gotten me anywhere is Option D, which tests my hardware…and passes with flying colors. But, I can not get my Mac to turn on! Can someone please be so kind as to help me figure something out quickly? Thank you!
MacBook Pro 15″, OS X 10.11