I recommend a new free tool for password/access troubles -
DreamPackPL.
This is the only soft that allow you to log on into any local account
without reset or time-cost cracking of existing passwords.
DreamPackPL will just turn off the password validation process. If you
dont want to log on into any existing account, then you can execute
any application (e.g. Regedit or window with accounts management) at
the logon desktop. You may also load the Explorer shell at new desktop
and work with admin privileges.
DreamPackPL have also other functions like logon mode with given hash
or hash calculator (with it you can see weakness of LM hash).
If you want to have a full control over the system, you can use Logon
Logger function (it create a log file with date, time, user name and
password).
Installation is not difficult. Just boot from prepared before CD,
copy one file to system32 directory and reboot. In order to see main
DreamPackPL window, you should enter command "dreamon" at the logon
desktop in "User name" or "Password" edit box.
To read about other commands see link below.
Site link:
http://www.d--b.webpark.pl/dreampackpl_en.htm
Regards
Damian