A troubleshooting step in many of those guides is to update Internet Explorer to the latest version available. It tends to fix many problems because of how integrated IE is with the rest of Windows.
I know many reading this would have no problem doing that but for those that do: all you need to do to update IE is download the latest version from Microsoft and then install it. Piece of cake.
I created this document as a way to keep the latest version number updated and provide a link to Microsoft's download area for IE. I'll be linking to this page from my troubleshooting guides, which should help.