I am about to purchase a second hand Laptop with Windows XP Home Edition.

I have no idea how registration of XP with Microsoft works as I am going to be the second owner and what one has to do about it?

The owner says "I have the windows XP home edition CD as supplied by Toshiba as well as the Utilities and MS Works 2003 CD all with their product keys".

Would you please give me some idea how this work please?