Hi @Chris M,
Welcome to Microsoft Q&A forum.
Sorry for this unwanted experience regarding the uninstallation issue (Error 1730). This issue can be caused by corrupt operating system files or configuration.
In this case, I suggest you use The Program Install and Uninstall troubleshooter tool. It will help you automatically repair issues when you're blocked from installing or removing programs. It also fixes corrupted registry keys.
Once you can uninstall Office 2007, I recommend you switch to later versions of Office since this version is end of support. To see which version of Office suits your Windows version, you can visit this article.
Hope this helps. Feel free to get back if you need further assistance.
If the answer is helpful, please click "Accept Answer" and kindly upvote it. If you have extra questions about this answer, please click "Comment."
Note: Please follow the steps in our documentation to enable e-mail notifications if you want to receive the related email notification for this thread.