I notice that my children are on the internet, however when I check the history browsing, I notice they have deleted their history. Is there a password or some kind of security method to prevent them from doing this, in order for me to see if the sites they have visited are safe or not?1 person needs an answerI do too

One of the best practice is to monitor them using parental control tools , you could try Windows Live Family Safety.http://explore.live.com/windows-live-family-safety-xpIt will help you to monitor and manage your children.