What if Windows7 Ultimate doesn't have its own chess?

If you have the original, if not, you can also use the following methods.

Start the menu, and then click Control Panel.

Point programs and functions

Turn windows features on or off.

Open the game, select the chess giant, and then click OK.

There should be both. Click the Start button, click all programs, click Games, and then click Game Explorer to find them. If not, please add or remove the software from the control panel to see if it is installed.