1. Right click on an empty spot on your desktop.
2. Select Properties from the pop-up menu.
3. On the Settings tab, under Screen resolution, drag the slider to 1024 x 768 and click Apply.
4. If prompted to apply the settings, click OK. Your screen will turn black for a moment.
5. Once your screen resolution changes, you have 15 seconds to confirm the change.
6. Click Yes to confirm the change; click No or do nothing to revert to your previous setting