I also had this problem (exactly the same). I confirm it works with the older version of chntpw (I'm using Ubuntu 12.10)
Thanks for sharing! -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1046622 Title: Latest version fails to blank or change password To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/chntpw/+bug/1046622/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs