So many things in Windows (and on a Mac/Linux machine for that matter) require you to confirm deletion, that it’s become a reflex to hit [Delete] & [Enter] in rapid succession. Sadly, the other day I deleted the very hand "Unread Mail" from Outlook. It’s a very handy way to immediately keep on top of incoming mail and I really have come to rely on it. So, it took me a while to find a method to get it back (on Google Groups, interestingly enough), although it’s extremely simple. All you have to do is create a new Search Folder (right click on the Search Folder in you folder tree, select New) and drag it back up to the Favorite Folders list. Tada.