I understand from your post that your Mac is showing a screen with your name and a black bar that does not change. The following article will provide you with the types of screens you see when your Mac starts up and information about each which may be helpful to you:
I understand from your post that your Mac is showing a screen with your name and a black bar that does not change. The following article will provide you with the types of screens you see when your Mac starts up and information about each which may be helpful to you: