If your USB or External Hard drive was used on windows and formatted by NTFS format, you can copy and paste data to your Mac Hard drive from your USB & External Hard drive, but you are not able to copy and paste date to your USB & External Hard drive from your Mac Hard drive. Here is the reason that you should format your USB & External to FAT32 or exFAT. Today, We are sharing how to format your USB or External Hard drive to FAT32 or exFAT on MAC OS X.
