Those games are part of the system, so just go into Control Panel/Add or
Remove Programs and click on Add/Remove Windows Components in the left pane.
With Accessories and Utilities highlighted on the first screen, click the
Details button. Highlight Games on the next
screen and again click Details. You can add or remove check marks from the
boxes to the left the games, then OK your way out and the system will
install/remove them for you.