Posted 07 February 2009 - 02:16 PM
Create a username with your step son and give him "Limited Access". If you go to Control Panel and then User Accounts, you can add a new user. And while you are adding him, you will see what type of account you are going to assign him as (i.e. Administrator, Limited Access, etc.)
You can also block websites that you think may not be safe. Also, keep up to date with your Antivirus software and Windows Updates.