Have a Windows XP SP2 computer that was part of a domain, now making it a home computer. Trying to install Microsoft Update to get the latest updates but get the above error message. I have changed the Internet Explorer setting to enable Userdata Persistance as suggested by Microsoft. I have also changed the registry to eliminate entries that disable Windows Update as suggested by another post from Google search. Neither of these have solved the issue which I am fairly sure relate to the fact that this computer was part of a Domain. So how do I get rid of all the domain entries in Policies, Services, Users, etc?