If your computer is connected to a domain, Parental Controls are not available.
You can choose which hours your children can use the computer. You can set which hours are allowed for each day of the week, and you can block all the rest. You can also view activity reports to see how much each person uses the computer.
Open Parental Controls by clicking the Start button , clicking Control Panel, and then, under User Accounts, clicking Set up Parental Controls.
If you are prompted for an administrator password or confirmation, type the password or provide confirmation.
Click the account that you want to set time limits for.
Under Parental Controls, click On.
Click Time limits.
In the grid, click the hours you'll allow.