Like Fruit Bat /\0/\ says.Add Remove.Turn windows features on or of and wait for it to load.Games should be at the top of the list if using W/7.Click on the Plus sign next to games to open it up and make sure the games you want to use are ticked.Ok.
Reboot and see if they then work.
That's how it works on W/7 not sure about xp or vista.
If you cant see games open up some of the other programs by clicking on the Plus sign and see if they come bundled with one of those.
Make sure games is ticked that is the main thing.
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