SecretZone creates a virtual drive that is secured by a password.
If the external drive has been formatted in FAT32, the virtual drive cannot be greater than 4 GB because the FAT32 file system does not support single file sizes larger than 4 GB.
However, Secretzone limits the size to 2 GB for more stable file management, considering the characteristics of the FAT32 file system.
If you need a larger security zone, backup the data from the external drive to two different storage media, then reformat the external drive to NTFS and then create the zone.
