2. In the Control Panel window, under Pick a category, double-click the Appearance and Themes icon.
3. In the Appearance and Themes window, under Pick a task..., click Change the screen resolution.
4. In the Display Properties window, click the Advanced button.
5. In the Default Monitor window, click the troubleshooting tab.
6. On the Troubleshooting tab, click and drag the hardware acceleration slider to the right to increase or left to decrease.
7. Click the OK button.