Microsoft Office 2011 Home & Student, Outlook, how do I stop it from showing up when I startup the mac?

When I turn on the computer it says activate Outlook. Problem is that I haven't purchased it. And now I can't turn of the computer because of it. When I start it, I can't close it. How do I get it away? 

PS I have tried preferences > accounts. And it is in Norwegian. But you get the picture.