How to change from 32bit to 64bit XP

[Dany99]

Hello,
I have 32bit XP service pack 3, I am trying to find a way of changing TO 64bit XP
Can I do this?
How do I do this?

 

[Emerald]

You cannot upgrade from any Windows 32 bit OS to any 64 bit OS, you must
perform a clean installation.