Free Cell, Hearts, Internet Backgammon, Internet Checkers, Internet Hearts, Internet Reversi, Internet Spades, Minesweeper, Pinball, Solitaire, Spider Solitaire.
They should be in "start button > All Programs > Games".
Can you find the games? If so what happens when you click on one.
As far as I know they should arrive after re-install without any need to switch them on, although they might have been an install option.
Always pop back and let us know the outcome - thanks