If an Microsoft Office 365 application such as Word or Excel isn’t working correctly, sometimes restarting it will fix the problem. If that doesn’t work, you can try repairing it. When you’re done, you might need to restart your computer... At nerdcore computers we offer a complete troubleshooting experience with Microsoft 365 Application suite. Microsoft 365 Outlook sometimes will play up with errors or loading issues, making your experience some what uncomfortable not knowing what to do when your Microsoft Office 365 is not functioning.