System: HP Envy 17 1011-nr
Link to this notebook: (product home, drivers, find your service tag, troubleshooting, support)
https://h10025.www1.hp.com/ewfrf/wc/weInput?product=4229850&cc=us&dlc=fr&lang=fr&lc=en
I just purchased and installed Windows 8.1 (64bit). I was previously using Windows 7 Professional 64 bit.
The default sound that Windows 8.1 provides rendered my audio soft and too low to hear, and I didn't have the quality sound that was previously experienced prior to upgrade.
I wanted to post this and let others benefit if they have the same system, then upgrade. The solution I found seems to have fixed my issue. Here is the link. Seems simple enough, but it did take me a while to find it.
Solution: http://h10025.www1.hp.com/ewfrf/wc/softwareDownloadIndex?cc=us&lc=en&softwareitem=ob-124012-1
Keywords: low sound, soft, cannot hear sound, after upgrade, windows 8.1