MS Outlook 2013 Issue which has Unread messages 

Question:- I have an annoying problem in Outlook 2013. My inbox is flagged with "1" unread message, but this is not the case. Even when I empty my inbox folder, this bold "1" stays next to my folder, new as it contains a new message.I've tried to "empty" it, to "clean" it, to "mark all as read" it. Nothing works.


Solution:-
In the “Search Current Mailbox (Ctrl+E)” box, type: read:no and hit Enter.
When it shows “Find More on Server” link, click it. Then the unread email(s) should appear.
EDIT: Works with Outlook 2016 as well.