Re: hp pavillion dv7 no sound

Hi winniewai,

I have included the link for audio driver for your model below. After you download and go to install make sure that you right click on the file and select Run as Administrator.

Audio Driver:

http://h10025.www1.hp.com/ewfrf/wc/softwareDownloadIndex?softwareitem=ob-72869-1&cc=us&dlc=en&lc=en&os=2093&product=4030660&sw_lang=

The other thing that you can try is using the Microsoft Fix It tool to check for audio playback issues.

Microsoft Fix It Tool:

http://support.microsoft.com/mats/AudioPlayback/

Thank you,