Word docs saving to WordPad
While Office Word will always save in DOCX format, but the default save options may have changed. To change it, click on Save As > browser, and then from the dropdown, select Docx instead of RTF. Once you do that, it will automatically save it in the same format next time.
If this doesn’t work, then go to File > Options, and check if the format in the Save section is RTF. If that’s the case, then choose to change it to DOCX. Apply the change, and the next time you create, and save a word file, it will be saved into the new format.
Word documents opening in WordPad instead of Word
Once the document is saved to Wordpad, right-click on it and select Open with. If you see Word listed, select it. If not, click on Choose another app or default program. If you see Word listed, select it and check the Always use this app to open doc files check box. This works for almost everything in Windows 10. As an example, if you want to open RTF files into Office Word, then you can follow the same and select Word as the default application. Now the next time you double click on any RTF file on your computer, it will open in Office Word.