How to add sound effects

1.Click Start and then click Control Panel.
2.Click Sounds,Speech,and Audio Devices.
3.Under Pick a task,click Change the sound scheme.
4.On the Sounds tab,under Program events,click the event to which you want to apply a sound.
5.In the Sounds list,click the sound you want to link to the event.
6.To hear the sound,click the playbutton to the right of the Sounds list.If you are satisfied with your choice,click OK.Repeat steps 4 and 5 until you have linked sounds to  as many program events as you want.
7.To save your settings into a personalized sound scheme,click Save As.Type a name for the sound scheme,and then click OK.
8.Click OK, to complete the procedure and save your sound scheme.

How to change screen resolution

Follow these steps:
1. Click Start and click Control Panel.
2. Click Appearance and Themes.
3. Under Pick a task,click Change the Screen resolution.
4. On the Settings tab,under Screen resolution,drag the slider to the resolution you want, and then click Apply.