You've posted your question in the Windows 7 section of these forums, and from your screenshots, it does appear that you have Windows 7.
Microsoft Print to PDF is only available for Windows 10.
You can "Save as PDF" from Microsoft Office applications or your can "print to PDF" using a number of third-party utilities, some of which are free.
For example: http://cutepdf.com/Products/CutePDF/writer.asp