Win 10 associate .rtf file to Word by default and changing back to Wordpad will cause Word to always display a message that it is not the default program

Microsoft Win 10 22H2 and Office professional Plus 2019.

In Windows 10, the .rtf file extension is associated with Microsoft Word by default. 

https://www.zubairalexander.com/blog/how-to-open-rich-text-format-rtf-files-in-wordpad-by-default/

However, if the default .rtf file association changes back to Wordpad,  a message will appear when you open the Word program informing you that it is not the default program.

https://www.minitool.com/news/microsoft-word-isnt-your-default-program-for-viewing-and-editing-documents.html

To prevent this message from appearing, open Word and go to File > Options > General. Scroll down to Startup options and uncheck the "Tell me if Microsoft Word isn't the default program for viewing and editing documents" option.