ok, I got a new question.
timmy just bought a new desktop computer, and he turns it on, and play some movies. The next day, he turns on his computer, there is no sound in his computer. Do you know what should timmy do?
I would go to control panel, sound and audio devices
click the sounds tab
highlight one of the events that has a speaker to the left
then click the arrow on the bottom right
if no sound
make sure speakers are on
and volume on speakers is on
or click on the speaker in the icon tray to the left of the time
and make sure the slider bar is up to a level that can be heard
and that depending on sound card, mute is not selected, and the correct play back device.