Microsoft has stopped support of XP
Please note that Microsoft has stopped supporting Windows XP as of April of 2014. This means that XP will no longer receive updates or security patches. Also vendors will stop producing software that is compatible with XP.
Currently RE/MAX Real Estate Group recommends Windows 7. The latest version is Windows 8, however, it has a very different interface than most people are used to, which is one reason why we recommend staying away from it. Also, there may be significant changes coming from Microsoft for Windows 8 which will further change the interface.
Windows 8 may become a recommended product at some point, but at this time it is not.