If you want to limit the total time for Internet use on weekdays, in the Internet access restriction section, select the Restrict access on weekdays to check box and then, from the drop-down list next to the check box, select a value for the time limit.In the Parental Control settings window, select the Internet section.
You can also prohibit the user from downloading files of certain types (such as archives or videos) from the Internet. By using Parental Control, you can limit time spent on the Internet and prohibit users from accessing certain categories of websites or specified websites.