Hey there, @Farmer. 

Thanks for following the thread. 

To clarify, what year and version of QuickBooks do you currently have? For example, 2019,2020, Etc. While I await your response, let's try some troubleshooting steps to cover the basics. First, you'll need to uninstall QuickBooks and Microsoft Office. Then, reinstall QuickBooks and Mircosoft Office in that order. This should reverse the issue and allow you to use Outlook again. I've included the links that contain the steps below to do this. 

1. Uninstall QuickBooks
2. Uninstall Office
3. Reinstall Office
4. Reinstall QuickBooks

If you have tried these steps, then I recommend contacting our technical support team so they can investigate this issue further. I'll be sure to keep an eye out for your response. Please let me know if you have any questions or concerns. You can reach out to the Community any time. We're always here for you. Take care!