Dear member of SanDisk Community, welcome.
Please, to discard problems:
1- Try other Cruzers on your PC, and see what happens.
1.1- Test the Cruzer, in other PCs, and see what happens.
1.2- Copy and delete a file, in the Cruzer (in the root, not in the app), to discard “write protected”.
2 - If all is well with your Pc and Cruzer , i_mplies that there is corruption_ in the SanDiskSecureAccess.
If the problem, is in the “SanDiskSecureAccess Vault” folder, sorry, is dead, ist kaputt.
But if the problem, is in the app “SanDiskSecureAccessV2_win.exe”, can you solve.
2.1- Then, delete “SanDiskSecureAccessV2_win.exe” old.
2.2- Download SanDiskSecureAccessV2_win, and copied to the Cruzer , open, password, and ready.
2.3- The latest version of SanDiskSecureAccessV2 (app portable, free), you can download from here:
Take a look at:
Luck, and then you tell us, what happened, please.
Regards, Alfred. (Google translated)