As JCPDS software is limited to run on window XP as most of the people have PDF2 version available. For using JCPDS with higher version is not available with most of the researchers. Therefore I am suggesting you to use following ICSD site which is much better than that as it consist all the latest results. The site is:
http://icsd.kisti.re.kr/icsd/icsd_chemistry.jsp
Open this, Choose the elements and click on search, you have the results of XRD pattern of compounds having that elements which you have used in input.
You can also use MATCH and Panalytical X'pert high score software for JCPDS data.
You can try freely available software- Fullprof. Its free and easy to use. For your convenience here I am attaching the download link for the software download according to your PC configuration. as well as available videos link to learn. It will be definitely helpful to you.