profile issues

Ronnie and Birger:
I have read both of your replies to "needlelady" to this problem. I have
just experienced this issue for the first time and can't move on. Luckily I
have another user available but fully protected and is how I am accessing
anything. This account is not an administrative account so I am locked out
from doing anything.

I am the main user and administrator. I have not set up another admin user.
As per ROnnie, I tried to access the system restore but it won't seem to let
me in when it asks for a password.
the error message is as follows <Windows cannot find "
'C\windows\system32\rstrui.exe' Make sure you typed the name correctly and
try again>

SO, I tried to do the route suggested by Birger and went to
<http://support.microsoft.com/kb/947215/en-us> . Again, going by the
recommendations, I tried to backup first but after entering password,
received error message as above but ... \systempropertiesprotection.exe.

How do I get into the system now? I think that it won't let me do
anything on the standard user account as it is not set up for that - it is
for my daughter and I don't want her doing anything (even though she could
probably fix this?)!

I am using Vista home that came with my Dell Laptop
I am not completely adept at this stuff - any suggestions or direction?

Your help is realllly appreciated.
Regas