Like every Windows, Windows 7 also comes with a bunch of cool default games. Some of them like chess, mahjong titans are in 3D which are good enough to kill time when you are really bored. These games are missing in Windows 7 Professional and they are not installed by default.
So how to enable the missing games in windows 7?
Go to Start –> Control Panel –> Programs.
Click Turn windows features on or off.
Check the Games folder. You may also selectively choose the games you want. Click ok.
It may take a while to install these new services and then you should be able to view the games explorer under start menu from Windows 7.
To uninstall, just go back and uncheck the games folder and click ok.