If Microsoft AutoUpdate crashes while installing the update to Outlook or fails to find updates, you can download the latest version of Outlook from the Microsoft website: How to update Outlook for Mac When AutoUpdate Fails No updates: You can click the Check for Updates button to manually check for new versions. Only AutoUpdate update: If the only available update is for AutoUpdate itself, do install this update first and check again for updates often, the updater update is a prerequisite for other updates. Update all: Of course, you can also click Update All to have AutoUpdate download and install all available updates. No Check for Updates: If you do not see Check for Updates in the Help menu, chances are your version of Outlook for Mac is from the macOS App Store see below.
To update Outlook for Mac to the latest version: