Why doesn't my new laptop have sound?

Episode 1317 (2:07:12)

Dennis from San Diego, CA

Dennis bought a new Dell XPS 9500 computer. Leo says that Dell XPS laptops are a very good choice. Dennis has an issue with the sound on it, though. He's also having problems streaming video. Leo says it could be the sound card but his first instinct is to look at the operating system. Dennis should update the drivers. He may even have to try reinstalling Windows. Then if that doesn't work, he can think about hardware.