or one that no one has encountered yet
it's starting to look that way!
I tell you what, we need to go back and re-confirm that driver (ie mic works)
Go
HERE (using Internet Explorer) click on the
Start Detection (black box)
When HP finds your system, download the Audio drivers
Un-install your current Audio driver (from Add/Remove programs)
Also go to Device Manager and click on View (on the toolbar) then "show hidden devices"
Remove any sound driver related file (not pc speaker though)
Restart
Cancel any automatic install (if you can)
Then install the new drivers
Hopefully it works!
If not, yes it can be deeper.
Remove the driver again!
On the command prompt type sfc /scannow
You will need your Windows disc and possibly your product key
Once finished re-install the driver again
Hopefully it works!!