In 2003, Microsoft released a 64-bit version of Windows XP, which was designed to take advantage of the then-new 64-bit processors. The 64-bit version of Windows XP Home Edition offered improved performance, especially when running demanding applications and handling large amounts of data.

Microsoft never released a 64-bit version of the Home Edition. If you encounter a download link for a "Windows XP Home 64-bit ISO," it is likely a modified or illegitimate version of the software. Understanding the 64-Bit Landscape of Windows XP

Before you download, you must understand which version you actually need. Microsoft released two 64-bit versions of Windows XP: