Locked out of Vista Business system

We have a Windows Vista Business System which has only one user account (excluding the built in and disabled Administrator Account).

The Welcome Screen only offers this user's account name and for some reason their password is no longer being accepted (it maybe that someone changed it and forgot etc.)

Whilst I know the password for the built-it administrator account I cannot activate it to logon with it because I cannot get passed the Welcome Screen (which at present does not display the default administrator logon option).

How can I access this default administrator account to reset the user's password ?  Do I need the original Vista Business OS CD etc. Thanks for help. . .
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Toni UranjekConsultant/TrainerCommented:

Download this tool to reset local administrator's account: http://home.eunet.no/pnordahl/ntpasswd/



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You could also boot the machine with BootPE do a good search and you will find links to this product
WJENorrisAuthor Commented:
Excellent tool - thanks !  Worked a treat !!
Have you had much experience of this editor causing any unexpected problems with Vista ??  
Toni UranjekConsultant/TrainerCommented:
This tool has been aroud for years and I don't remember having one single problem after using it, ever.
emeraldnwIT Help Desk SpecialistCommented:
Thanks so much I will try this!
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Windows Vista

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