Thanks for your patience. We’re putting Hiding the “Conversation History” folder (and other empty, unused folders) under consideration, for possible Outlook.com improvements.
Allow delete/hide of Conversation History folder
I will pile on this topic, please allow delete/hide of the Conversation History folder.
Allow me to pile onto these concerns. Allow hiding or deleting the Clutter and Conversation History folders. And not just on the desktop but also so they don't show in iPhone Mail app.