Just factory restored this HP with Windows XP Media centre edition, it looks like its stuck to service pack 2, would that be the reason why i cant even open the steam installer ( i have a bunch of older games on there that dont even work on windows 7...)? Firefox would not open up either but chrome worked, i built this machine so i can run Games that came out in the XP Era, Would XP be good for Dos games as well? i guess a better question; is windows xp better for use of DOS applications?