Activation Lock requires macOS Catalina 10.15 software update or later, the. There is a known issue with Apple’s macOS 10.13 and Office 2016 for Mac applications specific to proxy networks and Outlook for Mac. Contact your local network administrator for more information about your network settings and go here for a possible workaround. Apple’s Activation Lock feature prevents your Mac from starting up, helping. What if my Office 2016 for Mac applications continue to crash? Under Product Information, choose Update Options > Update Now. Go to File > Account (or Office Account if you opened Outlook 2016). To update Office 2016, you can follow the steps below: Open any Office 2016 app, such as Word, and create a new document. Microsoft 365 is designed to work best with Office 2016 for Mac. However, there can be times that you want to check for updates immediately. You can also get the latest update from our Release notes for Office for Mac. Go to the Help menu and click Check for Updates to launch the Microsoft AutoUpdate tool. How do I know if my software is out of date? To update your Mac operating system software, follow the instructions found on the Apple support website: or through your company’s standard software distribution process. To mitigate Outlook 2016 for Mac stability issues, users should keep their Mac operating system software and Outlook software up to date. Outlook for Microsoft 365 for Mac Outlook 2021 for Mac Outlook 2019 for Mac Outlook 2016 for Mac More.