"When should I run the "Scan Drive" feature under CC Settings?"

The first time you run Complete Cleanup, this opens automatically. You normally only have to do this once, as this will look for, and find any old uninstalled URL's, history, cache, or cookie files which are left behind from old browsers. This feature is mainly for Netscape users. Complete Cleanup will normally find all your current settings without this scan feature, however this will help verify everything is found, even files from old browsers which have been uninstalled. In the future, if you install new Netscape browsers, or add/delete Netscape user profile names, you can run this scan again to be sure that everything old or new, is found. You can access this anytime by clicking the "CC Settings" button.