Hi @MITCHELL, DONNA,
Welcome to the Microsoft Q&A forum.
Thank you very much for sharing your experience with us. I appreciate the time you took to provide those details. I understand that it can be a bit unexpected when Microsoft Word continues to show Heading styles (such as Heading 4-10) even after you’ve tried hiding or removing them.
I’m glad to help clarify why this happens and how you can manage it more effectively.
Microsoft Word uses built‑in heading styles that cannot be fully deleted; attempting to remove one simply resets it to its default state, and these styles may still reappear because they are part of how Word structures and formats documents.
In addition, Word may continue to display these styles when the Styles Pane is set to filters like All Styles or In Use, and the application can treat a style as “in use” if it was applied at any point which can cause deeper heading levels or TOC‑related styles to appear again under certain conditions.
Your feedback is truly appreciated, and your observations offer valuable insight into a real usability consideration that others may encounter when working with Word’s built‑in styles. As a forum moderator, I hope you understand that I don’t have the ability to modify or escalate product issues directly. However, I strongly recommend submitting your feedback through the Word · Community. This is the most effective way to ensure your voice reaches the product team and can be considered for future improvements.

Once you've submitted your feedback, feel free to share the link here in the comments. I’ll be happy to upvote it to help bring more visibility.
If you are unable to submit feedback from your side, please let me know and I will be happy to submit it on your behalf.
Additionally, since many other users have expressed similar concerns but may not know where to submit feedback, if my response has helped you better understand the situation and guided you toward a possible next step, please mark it as the "Accepted Answer". Your action will help pin this post to the top, making it easier for others in the community who are experiencing the same issue to find your feedback and support it.
I hope this information is helpful. Should you have any further questions or need additional assistance, feel free to reach out.
Thank you again for your time and for raising this important usability concern.
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