Find in this article information about the LaCie Setup Assistant.
In an instance where the software is interrupted during the formatting process, your drive won’t be ready to use and will require manual formatting.
The LaCie Setup Assistant is updated for use with new operating systems, but unfortunately some of the older LaCie products still available for sale might not feature the latest version of LSA when a new operating system is release.
If you are unable to run the application or if you are experiencing issues using LaCie Setup Assistant, it's possible that the version included with your device may not be compatible with the operating system of your computer. But it’s not necessary to run the LaCie Setup Assistant to be able to use your drive. The drive just needs to be formatted.
Warning: Formatting erases everything on the storage device!
For step-by-step instructions on how to format your drive, please visit one the following articles:
How to format your drive in macOS 10.11 and above
How to format your drive in macOS 10.6 to 10.10
How to format your hard drive in Windows
For more detailed information about the Mac File System formats please visit: Apple support
You can register your product here if you wish.