run a search (start->search) for ultimate cleaner, or maybe one word at a time. tell it to look in my computer, to search through all files and folders, and in the advanced options tab check the box for "look in system folders", and maybe hidden files too, though usually these programs don't have that kind of access. You also may want a firewall, some of them block changes to your settings, ie home page. post a screenshot of the results, if there are any.