Wrong option to zero out the free disk space on Windows

[Ervin Varga]

On page 129 (in the part, which explains the --compact option) of the User Manual (PDF version) the text erroneously describes how to zero out the free disk space on Windows. Namely, the following command is not correct:

sdelete -c

it should be

sdelete -z

[Frank Mehnert]

The -c switch is mentioned also in other sources. Do you know for sure the difference between -c and -z? Microsoft only says the -z is good for virtual disks, is there any more information available?

[Frank Mehnert]

I even read the suggestion to use both parameters together.

[Stephan]

sdelete -z is the correct syntax.

[Frank Mehnert]

Thanks, fixed in the documentation. The fix will be part of the next maintenance release.