We used to have a proxy server at one time and now we go out directly. We
used to push that proxy server address and internet explorer home page via
group policy. Since now we don't have proxy server and we no longer push
proxy server address through GP. But occasionally users are pulling old
proxy address and they are not able to go on to the internet. I did a
search for proxy address in the registry and I was not able to find any?

When we created an image, we manually set the proxy address, but we took
that out when copying settings to default user.

Now I don't know, from where it is pulling that old proxy address and if
it is hidden somewhere in the image how do I trace it and how do i fix it.