If a computer running Windows 8.1 and access all websites, but you want to restrict access to websites to their sites who are adults. The easiest way to do this is to enable the Family Safety is enabled by default in standalone. First, the user must create a separate children’s access to a computer running Windows 8.1, then Activate Family Safety from the user (account) as an administrator. This method of How to block websites may work in Windows 7 and windows 8 as well ( I didn’t try ).
How to block access to adult sites in the OS Windows 8. 1?
Log in to the Windows Administrator Then open users from the Control Panel (type control.exe in work)
in Control Panel, click Network and Internet, then Internet Options
open the window, click on the Content tab, and then click Family Safety (Displayed in the below right corner)
select the user for which you want to include restricting access to sites with adult content
Parental Control, select On, apply the current settings, and then click the Web Filtering
I choose the user can only use the Web sites allow (where the user login name used children)
Then, from the displayed list, select the one that seems most appropriate for the children you (for example, is designed for Childern; most of the options listed blocks access to sites with adult content)
Follow the steps above, you can block children’s access to sites containing adult and can also set other rules of use of the Internet (for example, you can set a fixed list of websites that can be accessed by children).