Filter Keys

To change the way Windows handles any repeated keystrokes on your keyboard, you'll need to use the FilterKeys feature. To get there, go to Start, Control Panel and click on the Accessibility Options link. Click Accessibility Options again and then go under the Keyboard tab. In the middle, you will see the FilterKeys area. Checkmark the box that says "Use FilterKeys" to activate it. You can then click on the Settings button to add your own preferences to it.