Open your firewall's configuration utility. Steps to do this will
vary depending on your specific firewall. For example, if you use
the Windows Firewall (a permanent fixture of Windows XP, Windows
Vista and Windows 7), you would enter the Windows Control Panel and
open the "Windows Firewall" icon.
Select the "Settings" option in your firewall configuration utility.
Some firewalls may call this the "Options" or even "Configure" menu
option. This will bring up a list of programs and sites that are
currently blocked from access, as well as a list of programs and
sites that are currently allowed access to your network connection.
Select the "Add" button and add the URL of the website you don't
want users of your computer to be able to access.
- Click "OK." The URL of the website will appear on the list on screen
and that website will be blocked from access on your computer by the
If you are using Windows you can do this via Internet Explorer:
Click the Start button, click Control Panel, type Internet options
in the search box, and then click Internet Options.
Click the Security tab, click a Restricted sites and then click
To add a site, type the URL into the Add this website to the zone
box, and then click Add.
Access Internet Explorer from your computer.
Choose "Tools" at the top of the screen. Select "Internet Options"
from the drop-down menu.
Click the "Content" tab in the Internet Options menu. Scroll down to
the second menu option, "Content Advisor," and click. Wait for the
new menu to appear.
- Click "Settings" within the Content Advisor menu. When the
"Supervisor Password Required" dialog box appears, enter your
Windows 7 password into this field and press "Enter."
Click the "Approved Sites" tab at the top of the screen. Wait for
the words "Allow This Website," along with an empty dialog, box to
Enter the full URL of the site you wish to block access to in the
empty dialog box under "Allow This Website." Check "Never."
("Always" is the other option.)
Click "Apply" to confirm that you are blocking access to the chosen
website. Click "OK" when you get a message confirming the change has
gone into effect. The website is now blocked by your Windows 7
Also you could try Windows Family Safety. It provides more options.