UNsyncing other email from downloading with outlook.com in windows live mail

Currently I have three email accounts from different sources downloading in Windows Live Mail. However, the outlook.com is synced so that it ALSO downloads the other two email accounts at the same time. This means that I have duplicates and sometimes triplicates of the same email message downloading to my computer. How do I UNCYNC the outlook.com account from doing this? I want to keep the Outlook account, but I don't want it to also download the other emails (which are set up correctly already).