Q: History on my computer

A: You can try a system restore if you have it enabled...go back to the time just before your son got off the computer start menu > programs > accessories > system tools > system restore

A: if you are the computer administator (meaning you have your own password protected user account) then you can set it up under control panel to see his most recently visited websites and his top ten most visited websites.

A: There is, information is never completely gone, but I dont know how much an amateur would be able to check on it (you'd need a computer savvy person to help you out on that). There is also computer software that will help you monitor where he goes. http://funadvice.com/r/3js9ohbrlg I do want to add though, you can control where he goes online in your house, but you're not going to be able to control where he goes online outside your house... You may want to consider another tactic...

A: block all web sites that are bad

A: You can also disable certain functions within his user profile, so that he will not be able to delete his browsing history. You should be the only one with admin privileges on that computer, and make sure that he cannot easily guess your password.