Nokia PC Suite Access Error

Hi,
I have a problem on how to connect my mobile to the computer.
I use Nokia PC Suite 6.84 Release 10 and my mobile phone is N Series.
And my operating system on my laptop is Vista.
While I was installing the Nokia PC suite the following pop up error appears :

Error writing to file: C:Config.Msie96973.rbf. Verify
that you have access to that directory.
Is it a problem with my Operating system or with the version of the Nokia PC Suite?
I cannot connect my mobile to the Laptop.
Is there someone who can tell me how to ignore or remove this error from appearing?
Thanks so much,
Goodbye Guys .
