Hi David,
Thank you for posting your query in Microsoft Community.
We understand how you feel about the situation. Let me guide you to resolve the issue.
Follow the below steps and check if it helps.
A quick question before we proceed.
Does the issue persists with particular file\Document?
Follow the below steps and check if it helps.
- Browse to the following location.
C:\Program Files or Programs Files (X86)\Microsoft Office\Office15 or <C:\Program Files\Microsoft Office 15\root\Office15>
- Right click on Excel, WinWord or PowerPoint and select Troubleshoot Compatibility.
- Click on Try recommended settings > Test the program and check if it works.
- If you still receive the same error > Next > No, try again using different setting and check if you're able to start the Office application.
If you have any other questions related to Office, feel free to contact us and we'll be happy to help you.
Thank you.