Removing Pre Installed Games From Vista
Windows Vista comes with a lot of built-in features which also includes the regular games like Solitaire, Hearts etc. If you have computers at your office and you don’t want your workers to spend their times playing those games here’s a handy tip through which you’ll be able to remove all those games.
1- Click on Start (Windows Icon) > Control Panel
2- Click on Programs And Features and you’ll see (on the left menu bar) “Turn Windows Features On or Off”.

3- After clicking the “+” beside Games, you’ll see all the pre installed games that come with Vista. Just uncheck the box and it will uninstall them in an instant.
I hope this helps.
Nice trick to deal with these issues.