Please try the steps mentioned below and let us know if it works:
Open the root directory of the flash drive.
- Open the SanDisk Secure Access Vault folder.
- Open the System files folder.
- In the system files folder there will be 2 index files. One with an extension of .idx and one with the extension .idx.bak.
- Rename the file with the extension .idx to .idx.old.
- Rename the file with the extension .idx.bak to .idx.
- Access the root directory of the flash drive again to log in to the Secure Access application.
