There should be nothing complicated about copying the files from the Audya to your computer to make a backup.
However you do need to do the following:
on your windows PC open the Audya drive from my computer.
in the menu bar go to "tools" then select "options".
then:
from the view tab
1) select: "show hidden folders, files and drives"
2( uncheck "hide protected operating system files"
next create a folder named 'AUDYA BACKUP' and drag and drop one folder at a time into the newly made folder.
It takes some time as there are over 12gb of data. The "system" folder is the largest its often the one people forget as its normally hidden.
NEVER CUT, COPY OR PASTE FILES OR FOLDERS.
always use drag and drop.
When finished don't forget to reverse the changes you made in steps 1 and 2.