Restoring to factory settings

That’s what markmik asks actually.

And if you can read on http://www.sandisk.com/goto/ClubSanDiskUSB/ :

“If you accidentally formatted the drive, click the button below”. So, in this case “accidentally formatting” means, the person who formatted the drive did not know SanDisk icon would disappear, together with Secure Access, and then that it wouldn’t be too easy to “reload” those files onto the drive.

And instead of trying to find mistakes or impossible actions in topic titles or the question, I would try to understand what people need, if you really want to help. It just would be quite adequate to try to understand what people want to tell. No one knows everything. Just if you can do things right, what you should do right; it would be already good.