OK so I downloaded SecureAccess from here: http://kb.sandisk.com/app/answers/detail/a_id/2399/~/sandisk-secureaccess-3.0-support-information-and-download-page and it creates two files called:
SanDisk Secure Access Settings
SanDisk Secure Access Application
The problem is (and this is much the same with most free encryption software that I have been testing), you can delete these files. To me this is a critical error as someone can accidentally or purposefully delete these files therefore removing your data.
Contrast this with WD My Passport Ultra:
The CD Drive WD Unlocker, if left in locked mode, does not have delete or format options in Windows. This is good.
A password needs to be entered to unlock the drive. This is also good
I am really looking for this solution for my SanDisk Cruzer Blade USB Drive as there doesn’t seem much point to me in installing critical software that can be deleted so easily.