FAT32 only supports individual files up to 4GB in size and volumes up to 2TB in size. For example, if you had a large file over 4GB in size, it will not be able to write on the FAT32 file system. On a 3TB drive, you cannot format it as a single FAT32 partition. NTFS has much higher theoretical limits. NTFS also offers better security with the support of file permissions. System files can be made read-only so typical programs can’t modify them protecting them from unwanted access.