Why Are Many ATMs Are Still Running XP? Many financial institutions are scrambling to upgrade all their ATMs with Windows XP. That's also a good idea for all the personal users too. Windows XP is a huge security risk and Microsoft will no longer issue updates! in Public bookmarkswith windows_computerswindows_laptopswindows_xp Note: Many financial institutions are scrambling to upgrade all their ATMs with Windows XP. That's also a good idea for all the personal users too. Windows XP is a huge security risk and Microsoft will no longer issue updates!