On 12/02/2019 19:50, J. P. Gilliver (John) wrote:

Could it be that either XP, or the hardware in the XP machine (or maybe
XP's drivers for the hardware), can't handle a single partition of size
64G on a USB stick? Or can't handle that big a stick regardless of
number of partitions?

As far as XP itself goes, there should only be something in that if the
OP was using FAT32, but he's using NTFS, and even W98+ and W2k could
handle disks/partitions up to 128GB, and after the addition of a
registry setting that wasn't installed by default, W2k could match XP,
2003, & Vista in going up to 2TB. So with NTFS there really shouldn't
be a problem.

However, if it's a really old PC, I suppose there might be a BIOS
limitation, which might possibly be cured by a later firmware.