Hello RickGanismith
First, try shot-down and then turn-on the pc, then, the computer will work normally.
Wait a little bit, you can see a running cursor and the login page flashes once or twice, after that, you type "enter key", it will lead you into the login page. then, black screen maybe shows again, be patient at this moment, because the pc is looking for the desktop folder, and now, you should can see the desktop page shown on the pc.
If it does not work, Ctl+Alt+Del, will lead to the task-manager. click 'file', select ' run-new-task. you will get another desktop windows explorer, then, you can do want ever you want.
wish you a luck!
yvonne