I have an HP PAVILLION A305 of current gesign running XP HOME> I need to replace it with XP PRO for the sake of downloading wmp9. The 9 player in HOME is not the same, deficient in my view. MSN says PRO9 CANNOT be installed on HOME. If that is true than I neede to swith the os. How is ehat done in simole ENGLISH please. I am a novice, not a techno geek. I do NOT have a cd rom, nor will I buy one just for this one time use. Any process will need to be done via the net?web and any help from you or this forum. Thank you.