No sound from laptop speakers after Windows update installed Realtek HD Audio

Laptop is HP6626US with Windows Vista 32 bit SP2.
I had an error with Windows Update which was recently fixed.  When I ran the update Realtek HD Audio was installed, among many other items.  I now have the red circle white X by my speaker icon and do not get any sound out of internal speakers.  
The Driver version is 6.0.1.6662
Direct X version 11.0
Audio Codec ALC 268
In Device Manager Under Sound, video and game controllers Realtek HD Audio is listed with Unimodem Half Duplex Audio Device if that is helpful.
Help Appreciated.

Hello,PaulM25. 
I see that you're having an issue with the sound on your notebook. Typically this means the Drivers don't exist and can also be considered as a hardware issue.
I have a couple of questions for you before we get going. 
This is your notebook (HP Pavilion dv6626us Entertainment) correct?
Did this issue occur after you updated the audio drivers?
Now, you can go ahead and try these steps to resolve the issue. 
Please completely remove the drivers for the Audio Device in Device Manager and “Control Panel – Programs and Features”.
Reboot the computer.
Please check if the device will be installed automatically after the computer starts. If not, please go to Device Manager and then navigate to the Audio Device, right click on it and choose “Update Driver software”
If the issue persists, please try to manually install the device driver which comes with the computer to see if it works. (You can also go to HP website to install the drivers. If you cannot find it, please give me the detail information of the device or the computer, such as brand, model, etc., I will help you search for the proper driver.)
THX

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