Start/Control Panel/Sound & Audio Devices/
Look to see if Mute is not checked. Also click the Audio tab at the top to see if your sound device is listed there.
Best of Luck
Hi, I have Win XP on a 2-yr-old Dell. All of a sudden, no sound. I swapped out the speakers but still no sound. Windows diagnostic says the card is operating fine and there are no updated drivers to install. I didn't install any new HW or SW--just of all a sudden, no sound. Did my sound card die, or do I have a hidden virus, or something else?