not in ohio
reply to bbear2
Re: File Shredder for Network Drives What file system does this NAS use?
You need a program that runs on Windows, and supports the file system used on the NAS.
If it's a low-end consumer NAS, it's likely running Linux, Samba, and some Linux-supported file system.
Why's it matter? Because on some file systems, a honking great file of zeroes doesn't necessarily occupy any disk space ('sparse file support').
Can you get to the shell on this NAS? If so, perhaps there's a Linux utility you can use.