SolutionĪs mentioned previously, while this solution discusses the Outlook Change Notifier add-in, other add-ins could cause the same issues and therefor the solution discussed here can be applied to other add-ins as well. As a result, Outlook wrote a corrupted AutoComplete list when shutting down which couldn’t be loaded anymore when you start Outlook the next time. When installing iTunes, it also installs an Outlook add-in called Outlook Change Notifier.Īn older version of this Outlook Change Notifier add-in didn’t let Outlook shut down gracefully anymore. Note that this is just an example other add-ins can cause the same issues as well. So I’ll use it as an example in this guide.

Most often, this issue is caused by an add-in preventing Outlook from shutting down properly or even crashing it.Īn example of an add-in which has caused a lot of issues is the “Outlook Change Notifier”. When Outlook isn’t closing properly on your computer, your AutoComplete cache may not have been saved either and thus shows up empty the next time that you start Outlook. The AutoComplete cache is saved upon closing Outlook. How can I make Outlook retain the addresses?

Every time when I restart Outlook, the AutoComplete cache is completely empty again and no suggestions are being made when addressing an email.

Outlook 2019 profile keeps getting corrupted