Hi Barbara,
If, on the UFD (pendrive or Unit F__lash Drive), you should have two files:
1- SanDiskSecureAccessV2_ mac , (the application).
2- SanDiskSecureAccess Vault (which is the folder that contains the encrypted files).
3- If you lose or delete to SanDiskSecureAccessV2_mac (1), there is no problem, as other download, and ready.
4- But if you lose or delete a SanDiskSecureAccess Vault (2), missed all content.
5- If, you can change the name, the application (1).
6- Do not you can change the name, the folder/Vault (2), because the name is generated by the application (1), and if you change it, the application will not open, and will generate a new Vault.
7- If, you can move on, too, to the application (1), a any folder.
8- You can not move the folder/Vault (2). You should leave it in the root of the UFD, because that is where the going “find” the application (1).
Luck.
Regards, Alfred. (Google translated)