Hi,
I unfortunately can't help since I don't have Windows. But in the german pocketbook forum I found a description by Forkosigan for showing all files when using Windows:
https://www.mobileread.com/forums/att...7&d=1386875857
Since your name suggests that you understand German perhaps this is of some use to you. The link to the complete thread is
https://www.mobileread.com/forums/sho...d.php?t=229023
Best regards, Jens