How can I download NX Student Edition here? I can't understand how. There is no link.
The NX Student Edition doesn't appear to be available anymore. On the official website, I can see only NX Academic Edition and NX Learning Edition. Based on the available information, it appears that you will have to contact them if you want the software or you're part of an university or academic research.
Access the page and click the contact us link in the available paragraphs for the selected version: https://www.plm.automation.siemens.com/en_us/academic/resources/nx/