I was posed a question by my dad, how does one retro-grade xp pro to home, it had me thinking, there isnt really that much between them on the face of it, so afew minutes of digging and i found this nifty little app XP_modeswitch.

Basicaly all you do is run this app from pro, change the mode to home, reboot with the xp home disc, and do a repair install.

this was taken from another site “That should sort it out for you” so all credits go to him.