Most of these ISOs are "en_windows_xp_professional_x64.iso" — the original untouched images. A word of caution: Archive.org is a library, not a software store. You are responsible for your own licensing. You will need a Volume License Key (VLK) specific to the 64-bit version, as standard XP Home/Pro keys will not work .
If you're interested in running Windows XP Professional x64 Edition, here are the minimum system requirements: windows xp professional x64 edition archive.org
But you should download it from Archive.org because: Most of these ISOs are "en_windows_xp_professional_x64
: The MUI Pack CD1 and CD2 allow the English-only x64 OS to be used in other languages. Key Technical Specs windows xp professional x64 edition archive.org