I was trying to set up a third user for me to use instead of using the Admin user as my everyday login. I set up Admin, Julie (new) and guest. I set Julie and guest to not have Admin access but instead of restarting my computer, just went to the new "Julie" user. Finding that none of my files were accessible, I tried to correct my error by making "Julie" have Admin accessibility and removed the accessibility from "Admin", expecting to just change the names on the accounts. I restarted my computer and now find I have no Admin accessibility and can not make any changes that require an Admin username and password. Is there a way to reverse this and do a system restore? Or is there a better way to accomplish this. I am using a MacBook Pro with OS X Yosemite.