Hangs in boot status bar
I’ve transferred all my data and documents to the new computer and yesterday I had to make a security change (apple, preferences, security) so that I could get both thunderbolt ports working as they were not being recognized. I followed the advice online, shut the computer down using shift, control, option and power at the same time, and now all I get is a loading bar on the screen. I let it go for an hour last night to no avail, and this morning, the same thing.
I’m at a loss what to do.
I’ve included a picture.
Any help or guidance is appreciated.