This video deals with the situation that no sound from output devices (speakers) when you try to play audio. Sometimes you may accidentally disable the playback sound or pairing their Bluetooth headset causes no sound output from speaker. If you want to read the none-video solution steps, please click here.
Still no audio from the speakers, try How to diagnose audio issues to learn more.
Laptops & netbooks, Desktops & All-In-One - ALL Idea series
Windows 7 and Windows Vista