Sometime Outlook may stop responding or experience problems because of installation issues. Luckily, Office includes a repair utility to fix common problems with the suite of apps.
To repair the installation, close any running Office application, and do the following:
Open Settings.
Click on Apps.
Click on Apps & features.
Select the Office installation. (The name of the installation will be slightly different depending on the edition you have installed.)
Click the Modify button
Select the repair option:
Quick repair: Resolves most issues using files already stored on your device to repair your version of Office.
Online repair (recommended): Resolves any issues with Office, but it requires an internet connection to download the necessary files to repair your applications.
Click the Repair button.
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