By Games are you meaning Solitaire etc that usually comes with previous
Windows versions? If so the go to Contol Panel and then Click the Add/Remove
Icon. In the Add/Remove window click on Add/Remove windows components icon
on the left of the screen.
The Windows compnent Wizard will open with the Accessories and Utilities
option highlighted. Click the Details button near the bottom of the screen.
In the next screen you should see two components - Accessories and Games.
Make sure the Games has a tick in the box on the left of the option. Remove
the tick (just left click your mouse in the box to remove or apply a tick)
from the Accessories option and then click OK. The screen returns now to the
windows component wizard. Here you click Next. The Games will now be
installed.