Thanks Ed,
Actually it was the Sandisk helpdesk who advised me to make a back-up of all files on the USB on my desktop which I did. Then they advised me to format the USB and put the back-up back on the USB which I did but no result. So I have the files (and judging on the size and number these are the actual files) but cannot retrieve these on the USB anymore as it wants to create new vault instead of accepting the origingal one. Have tried to put the back-up vault in the new vault but no result.
So since I actually have the files in some form (it just gives as extension/file type: “file”, I wonder if there is no other way (hack?) to access these.
Many thanks,
