[NTLUG:Discuss] USB drive is recognized in Windows but does not show up any files on it

[Ralph]

Howdy Fred,
  I can make several point, but I can;t give you a simple answer.

  1. Mageia 5 is a little old.  Mageia probably would give you better
results with this issue, although you may have reasons for staying
with 5.
  2 exFAT is proprietary and controlled by Microsoft.  They like to
change their systems and Linux must figure out what they have done.
They usually do, but it takes time.
 3. The FAT32 filesystem is likely to give you readability on both
Linux and Windows.  It uses larger allocation units, so it may be less
efficient.  Assuming you want to format the first partition on sdd,
you could type:   mkdosfs -F 32 -I /dev/sdd1
  You must check and double check that sdd is the right device name.
I usually start with dmesg and follow up with a fdisk -l to be sure I
have the right drive device.
 4.  I have one 64GB SD card in a Linux system.  That is the boot
drive of a Raspberry Pi Zero W and it uses FAT32.  I might try XFS,
but Microsoft has a policy of not supporting decent filesystems.  I
think it is more than NIH, but that is an opinion.
 5.  The mount command will give you information on mounted filesystems.
Good luck,
Ralph