I have tried 3 different computers with the same results.
Return it. Something isn’t right. http://kb.sandisk.com/app/answers/detail/a_id/5232/~/return-material-authorization-(rma)-process
The vault is find for things that need to be secure: resumes, legal documents, medical records. But people frequently try to put everything into it: movies, music, hard drive backups, etc and it fails. It wasn’t designed for that type of use. Those things can be stored on the drive fine, just not inside the vault.
Good luck.
