Changed and lost password

From: Greg (ghenke@emirates.net.ae)
Date: 08/14/02 

From: "Greg" <ghenke@emirates.net.ae>
Date: Wed, 14 Aug 2002 12:30:38 -0700

I used "net user username /random" at the command prompt
to generate a complex password thinking I would be given
the chance to write down the new password.

Big mistake as I now have a new UNKNOWN password. I have
admin rights on this account/computer which is a stand-
alone computer i.e. no network.

Does anyone know how to revert back to my previous known
password?

Barring that, I'm fortunate in that I haven't encrypted
anything yet! So could just delete my user account and
start over.

Thanks,

Greg