As we’ve mentioned multiple times, now is really the time to upgrade from Windows XP if you haven’t done so already. Even though Microsoft will extend support for its Windows XP security products through July 2015, the company has warned that “the effectiveness of antimalware solutions on out-of-support operating systems is limited.” Bloomberg Businessweek reports that some of the most important machines that desperately need to upgrade from Windows XP are ATMs, of which an estimated 95% still run on Microsoft’s older operating system. There’s some good news and bad news about this. On the plus side, Bloomberg Businessweek says that the more advanced fleets of ATMs should be able to upgrade their machines to a newer version of Windows through