Using classic Outlook for Windows in business environments
Hi, ChrystinP
Welcome to Microsoft Community.
I realize that you've encountered a problem when using search function in Outlook 2016.
You can consider rebuilding the index file: In the Outlook application, select File->Options->Search->Index Options button on the right->Advanced->Build.
You can check the Windows Search service: Press Win + R, type services.msc and press Enter; Find the “Windows Search” service and make sure its status is “Running”. If it is not, right-click on it and select “Start”.
For fixing the missing Setup.xml file issue, you can repair Office installation:
- Open the Control Panel and select Programs and Features.
- Locate Microsoft Office, right-click and select Change.
- Select Quick Fix or Online Repair and follow the prompts to complete the repair.
If repairing your Office installation does not work, you may need to manually download the missing Setup.xml file.
In addition, you can create a new Outlook profile, the specific path: Control Panel->Mail->Show Profiles, create a new profile and reconfigure the mailbox. For more details, please refer to: Create an Outlook profile - Microsoft Support
Hope these steps will be helpful! If you need further help, please feel free to let me know.
Best Regards,
Cece | Microsoft Community Support Specialist