How do I change my ';windows xp home edition'; back to ';windows xp';?

home edition looks abit old and i'm trying to change it back to what i had before which is windows xpHow do I change my ';windows xp home edition'; back to ';windows xp';?
i thnk u shud gt an xp cd of ur desired edition ..... How do I change my ';windows xp home edition'; back to ';windows xp';?
what exactly do you mean? XP came with Home and Pro Editions. Since you have home, do you mean to go higher to Pro?