How to refrain children or other users from playing games on the computer that you do not want them to play?

    NOTE: In order to effectively configure the Parental Controls features, all Administrator accounts should be password protected. As long as an Administrator account has no password, any user can bypass or turn off the Parental Controls.
4. In the Parental Controls window, click the user account to which you want to apply the Parental Controls.

    NOTE: Parental Controls cannot be applied to the Guest account. Because of this, and because a user can use the Guest account to bypass Parental Controls, is recommended that the Guest account be turned off when using Parental Controls.
5. In the User Controls window, under Parental Controls, click to select On, enforce current settings.
6. Below Windows Settings, click Games.
7. In the Game Controls window, configure which types of games someone can play:
       * To block all games from being played, under Can someone else play games, click to select No.
       * To block (or allow) games based on ratings and content types, click Set games ratings, click to select the desired rating and content settings, and then click the OK button.
       * To block (or allow) any game on your computer by name, click Block or Allow specific games, click to select which games to block or allow, and then click the OK button. 
8. In the Game Controls window, once all the desired game settings have been configured, click the OK button.