It's ' the Methuselah of desktop operating systems': Harry McCracken
                                
                                
                                    (Newser) -
                                    Despite upgrades like Vista and Windows 7, Microsoft's most popular operating system remains the clunky, security-plagued, 10-year-old Windows XP. But why? "I'm fascinated—and, in a peculiar way, inspired—by XP's astonishing longevity," writes McCracken in  Time . Microsoft is mostly at fault, he says, because...