late 2013 MBP 2.6GHz on 10.12. I deleted an alternate admin user (not my main admin account) from my MBP but when I startup it only shows the deleted account to log in to. If I enter the password it loads (progress bar) which takes a little time, then it pops up my main account as it should. Being that I have been using bootcamp a lot lately, it is frustrating to have log in take twice as long. The old account was deleted the normal way through Users&Groups and no longer shows there. It started in El Capitan and hasn't changed for Sierra. How do I remove whatever traces of this old account still exists?