1. Start > Control Panel > Sounds and Audio Devices
2. Select Volume tab. Under Speaker Settings, click on
Advanced
3. Try setting it to Stereo Headphones
4. Click OK.
5. Next, click on Audio tab
6. Make sure that for all categories, the sound card chosen is the
motherboard's built-in card. Unsure, check the laptop manual for
what type of sound card is built-in
7. Click OK all the way to save the changes, then try again
If the laptop has a built-in Sound Manager, try configuring via
there.