Some Intel and Realtek drivers were automatically installed and now I have no sound. I have tried deleting the devices (both sound and display) in Device manager, but I still get no sound. There dpesn't appear to be a way to roll the drivers back.
The drivers installed that caused the problem are:
Sound Research Corp. - Extension - 126.96.36.19945 (3)
Thanks for your reply. I did try both the Windows audio troubleshooter, and also the HP one, neither of which worked. I also tried a variety of other things - uninstalled drivers, disabled Windows Update, manually installed from HP and Intel websites, none of which worked. Fortunately, the laptop is only a month old, so in the end, I reset Windows which brought the sound back.
In case anyone else has a similar issue, my model is an Envy 13-ba0010na.
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