Once you have downloaded your preferred ISO, you can use these tools to create bootable media: Windows XP Mini Boot : Microsoft - Internet Archive
One of the most famous tiny builds, focused on pure performance. Hiren’s BootCD (Mini XP Mode):
Not all mini XP builds are equal. Many found on forum links from 2012 are unstable, missing critical SATA drivers (so they won't see modern hard drives), or infected with viruses. A mini Windows XP bootable ISO should have: