2013 Macbook pro upgrade to mojave fail
I have a 2013 macbook pro that I hardly ever use. Nothing wrong with it. I upgraded to the mojave and now it brings me to the sign in screen for my username has the picture in the background and has a loading bar. The loading bar goes and 3/4 of the way and a black line about an inch wide runs across the top portion of the screen and it gets stuck there? How to I get past this and try and remove the upgrade