To enable/disable features in windows 7 you use dism (deployment image servicing and management).
The following batch file will enable the basic games (chess, minesweeper, solitaire, etc...), but not any of the internet games.
This will have to be ran with full admin privileges.
rem --------------games-enable-w7.bat--------------
rem to get a list of whats available and enabled/disabled
rem dism /online /Get-Features
echo make sure you're running this with admin privleges
dism /online /enable-feature /featurename:"InboxGames"
dism /online /disable-feature /featurename:"Internet Games"
dism /online /disable-feature /featurename:"More Games"
rem ---------end of batch script----------------
