Windows XP news on updates

To a specific question asked to Microsoft, that is why at the end of the installation of Windows Xp we dare the available updates, the answer of the same Microsoft, was because they are accumulated updates

I am testing a version of Microsoft's original Windows XP, installed for about 4 days, with updates available and for 3 days that has been regularly downloading updates from Miceosoft, these are not accumulated, but they are downloaded directly from the Microsoft office, but .... this explanation the same Microsoft as it can give us? These are not accumulated updates, but downloaded as said by Microsoft, which glissa denies confirmation denies and more