Windows xp repair function

[graham]

I have XP home edition, I have changed my mother board
and now want to use the Windows repair facilty to update
the o.s. on my hard drive.

The problem is that I am asked for the administrator
password to do this.

Under the original installation that was set up there was
a user with administator rights, but when I use that
password it is not recognised. In this situation does XP
assign a default password for the administrator, if so
how do I find out what it is.

The other option I have tried is to enter the user name
with administrator rights followed by that password, this
is also unsuccesful, but maybe I am not using the correct
format between user name and password.

Can anyone out there help me, I am sure this is a real
easy question that you must be bored of reading but for
me it is a big problem.

 

[Brian]

when you put your cd in and you boot from it are you hitting R for repair or
are you hitting install and continuing with the install and selecting the
second repair? if you boot from cd and hit R you are entering in to cmdcons
and this is not want you want to do