Outlook 2010 has several places that "show as conversations" needs to be turned off, for the setting to stick: - In the View tab of the ribbon, make sure "show as conversations" is not checked - Click the "Change view" drop down menu, find the current view settings, click modify. Other settings: uncheck "show items in groups" Group by: uncheck "automatically group" and set "group items by" to "none" Sort: make sure "sort items by" is not set to "conversation" - Finally, in the folder itself, right-click any column header, go to the "Arrange by" submenu, and make sure "show as conversations" is not checked.