The Seagate Thunderbolt adapter driver is only needed if you are using 3TB or 4TB drives with the Thunderbolt adapter and plan to change drives with other GoFlex adapters (such as USB or FireWire). If you don’t intend to use the drive with other adapters it can be reformatted and the software is not needed.
The driver provides read and write access for Seagate external drives in Windows without having to reformat.Note: Not compatible with drives formatted with Apple File System (APFS).