By default, most folders in Outlook display the number of unread items after the name of the folder. You can change a folder to display only new messages or total number of items in the folder. To adjust the number display, please follow these directions:
1. Right-click a folder, and then click Properties.
2. On the General tab, click Show total number of items to display the total number of messages (both read and unread) or Show number of unread items to only display the number of unread items.
3. Click Apply to apply the settings.
4. Click Ok.
Please Note: Multiple folders cannot be changed at the same time. Repeat these steps for each folder you want to change.