why did my hotmail account change to outlook????????????????????

i recently was on my hotmail account at work printing messages from a client. When I looked up there were 5 tabs open showing outlook. I closed them all but my hotmail account changed to outlook. Now I have a completely dofferent look. My emails don't open automatically. Does any one know how to change it back. I want my pretty picture bar at the top of my page not a generic sterile bar. Please help.