As with all activities related to the computer, it is best to talk with your child, and be involved with their online and gaming life. Take an interest in the games they like to play and supervise gaming in order to make sure there is not excessive violence or other objectionable material. Set rules for your kids for how long they are allowed to play games. Some parents find it helpful to set "homework before gaming," or "outside play before gaming" rules so that school work and exercise are not compromised by the computer.
For the times when you cannot directly supervise your child's gaming, Windows has features that can help. Parental Controls are available to set specific time limits on when children are allowed to log on to the computer. You can set which hours the kids are allowed to log on for each day of the week. When their allotted time is up, they'll be automatically logged off.
Here's how to get started: Click to open Parental Controls. They'll be a prompt to enter an administrator password or confirmation, then type the password or provide confirmation.
1. Click the account that you want to set time limits for
2. Under Parental Controls, click "On"
3. Click Time limits
4. In the grid, click the hours you'll allow
Activity reports allow you to see how much each person uses the computer.