If you are looking for the old "Windows XP Support Tools" (specifically the administrative tools pack), those are still available in the Microsoft Download Center archive, but they are for fixing XP inside the OS, not for installing it via USB.
Because you are downloading from sources that might not be direct microsoft.com (given XP’s removal), you must authenticate the files. If you are looking for the old "Windows
to download "untouched" versions of the Windows XP Professional SP3 ISO that were originally distributed via MSDN. Microsoft Learn 2. Tools for Creating a Bootable USB If you are looking for the old "Windows