Western Digital has a DOS based program in its Diagnostics suite (available free on the WD web site) that does that for its hard drives, but I don't know if it works for floppies or non-WD drives.  It's a small free download, try it.
>
>Can anyone recommend a small DOS-based utility that will write zeros to all sectors on a FLOPPY diskette?
>
>Alternatively, how about a DEBUG script that would overwrite the Boot sector and FAT of a floppy?
>
>I need a minimum-sized (and quick) utility that can run in a batch file to convert formatted 3.5" floppies to an UNFORMATTED state. I need to "blank out" diskettes for testing a student's ability to format a floppy.



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