If you have access to the Windows 10 install see if the process posted here helps:
http://forums.sandisk.com/t5/All-SanDisk-USB-Flash-Drives/USB-flash-drive-in-RAW/m-p/363046#M12974
If you have access to the Windows 10 install see if the process posted here helps:
http://forums.sandisk.com/t5/All-SanDisk-USB-Flash-Drives/USB-flash-drive-in-RAW/m-p/363046#M12974