Changing the default page after signing out from Outlook.com to msn.co.nz

I set up an outlook email address but when I sign out, it defaults to UK MSN homepage when I want it to default to the New Zealand MSN homepage.  All the information on my profile says "New Zealand" as my home country, yet it does not default to the New Zealand page. Not sure why this is the case.  I have looked on Outlook.com but can't see how this can be changed, which is kind of strange (but somehow not 'surprising'). As a friend of mine has an Outlook email address that does default to the NZ MSN page when signing out, I know it can be done.  I just need to know how. Surely this should be a very simple change to make. Surely...