Vista - Admin Account Locked/Deleted

A work colleague has locked/deleted his admin account in error.
I have followed the guide for recovery but nothing will work.

Safe mode - system restore - repair console - NT offline recovery all failed.

Could I connect his drive to my computer and access the user accounts to create a new user or promote an existing user to Admin?

Or does anyone know another tried and tested way to recover or create a User Account with administrator privlages without having to re-install Windows?

Thanks in advance - Lufcboy

Try to login in build-in administrator account and make diagnose & repair or create new admin account.If there is no any administrator account build-in admin should appear in safe mode -if not you have to enable build-in admin remotely

There are many various methods to do that:

link :What do I do: I can no longer log in or elevate to an administrator account

apart of above method alsoTools for reseting password also have option to enable/disable accounts (for built-in admin also) for example Offline NT Password & Registry Editor

Thks Flavius - There is one method in the link that you provided that I have not tried "The really hard way". I will give it a go.

Thanks again

Hi lufcboy

1) If this PC is a works unit see your works administrator.

2) Do opion 2 from the link work.

Its not a work PC its for someone at work. I will not be seeing him until Monday so I don't know if this method works yet. I will actually be trying Opt3 from the link. As a footnote I have used the Offline NT and password recovery option in the past but it did not work on this occasion.

Thanks for all the help and replies

All the best

Lufcboy