如何關掉指定網址，禁止小孩上網玩游戲？

If you set above mention method, you also need to set the login account for your child... being if they know how to setup, they can just release it.
I think you just need to setup the account for basic use... NO admin right will be fine.

在我的電腦裡， 輸入指定網址， 表示禁入， 那就入不到。