Okay, I sound like a broken record, but this is important!
The MVPS HOSTS file should be an integral part of your Windows security.
It will keep you, or anyone using your machine, from going to known
problem web sites. A new version comes out once a month and I always try
to make sure I have the latest. Did I mention it is FREE?
You can download it from here: http://winhelp2002.mvps.org/hosts.htm
The current version became available on June 4. On the above page, right
click on hosts.zip and select Save Link As and download it (I recommend
downloading to your Desktop because you will use this file and delete it
after you install the current version). Once downloaded to your
desktop, right click on the zipped folder and select Extract All. This
will create another folder named HOSTS. Open up that folder by
double-clicking on it and then right click on the file MVPS.bat, and
select "run as administrator". The new HOSTS file will then be
installed, replacing our old HOSTS file (yes, you will always have one,
even on a new machine, since an empty and useless HOSTS file already
exists on your system). The blue window that next appears will inform
you that the new file has been installed.
Lastly delete both of the HOSTS folders on your desktop. They have served their purpose and are no longer needed..