To delete cookies in Internet Explorer 6.0, navigate to Tools > Internet Options > Delete Cookies. For Netscape 7.02, access the cookie management feature through Tools > Cookie Manager > Manage Stored Cookies. Users can remove specific cookies by highlighting them and selecting "Remove Cookie," or delete all cookies at once using the "Remove All Cookies" option. Additionally, there is a tab for managing blocked cookie sites, allowing users to adjust settings for sites that require cookies. Another method for cookie deletion involves using the Start menu to search for "cookie," selecting all found items, and deleting them.