It sounds like you are running into a known conflict between Finale and Windows 10's new Microsoft Print to PDF driver. You can still use this print to PDF driver; however, you will have to choose another default printer and switch to Microsoft Print to PDF in Finale's Print dialog box before printing to workaround the issue. For more information, please check out this knowledge base article: Score and parts options missing from Print dialog box (Windows).
Jeez - I had this same problem and it's quite frustrating that it hasn't been fixed. I like the Microsoft PDF writer - it actually works and I have never had problems. Not so with Export to PDF in Finale. I used that option and of course I got the usual errors - three fonts are supported. Would someone fix the Finale PDF writer or do something about this conflict with the Win 10 PDF driver?????? PLEASE????? I upgraded to Finale 25 after much deliberation about trying another program because I get so annoyed with bugs in Finale that seem to never get fixed. Don't make me feel like I made a bad decision!
I think we are going to need a little bit more information than that.
It sounds as if you are using a PDF printer (rather than the Finale PDF export function) which many consider wise. You should then see something like this, depending on what PDF printer you have to print with.