When you are finished, click the red close button in the upper-left corner to close the window. Click Force Quit to quit the application. Select the application in the Force Quit Application window, and then select Force Quit. If you cannot quit an application or do not know how, hold down the Command and Option keys, and then press Esc on your keyboard. To quit an application, click the menu on the toolbar (top), and then select Quit. How to rebuild your identity database Step 1: Quit all applications You must quit all applications before you perform the following steps. The clippings in the Scrapbook disappear.A blank Office Reminders window appears.When you perform a search in Outlook, the search results don't match the criteria that you set.You can't find information that you added to Outlook, such as a calendar event or a contact.

Outlook contact entries are not displayed correctly.

Blank lines appear in the Outlook message list or in Outlook contacts.

Outlook items don't open, or the item that opens is not the item that you selected.

Outlook doesn't open, stops responding, or quits unexpectedly.

If you have any of the following problems, the database might be damaged, and you might have to rebuild your identity database by using the Microsoft Database Utility: Your identity is located in the Microsoft User Folder data. The identity contains a set of email messages, contacts, tasks, calendars, accounts settings, and more. This article describes how to rebuild the identity database to resolve problems in Microsoft Outlook for Mac 2011. Outlook 2011 for Mac gives you some tools to help you manage your Identities. In Office 2011 for Mac, the default Outlook Identity is called Main Identity, but the application allows more than one. If this is the first account you're creating in Outlook 2011, under Add an Account, click Exchange Account. Just close all O365 apps and run the tool, then try to open new word file first and provide your login data, after that open the outlook and test the performance.

you can also use this tool to claer you license without deinstalling the outlook app, and will not imapct negative.

First of all clear all outlook caches.

This is one of the most outlook common issue, so please try following technical steps:

Mac outlook identity folder