12-05-2011 06:50 PM
Try the following.
Download the IDT Audio installer on the link below and save it to your Downloads folder.
When done, open windows Control Panel, open Device Manager and open up Sound, Video and Game Controllers. Right click the IDT device and select Uninstall - you should also get a prompt to remove the current driver, tick the box to allow this and then proceed with the uninstall.
When complete, restart the notebook and let Windows fully load. Open your Downloads folder, right click on the IDT installer and select 'Run as Administrator' to start the installation. When this has completed, right click the speaker icon in the Taskbar and select Playback Devices. Left click 'Speakers and Headphones' once to highlight it and then click the Set Default button - check if you now have audio.
If you still have no audio, open windows Control Panel, open Administrative Tools and open Services. Check that the following services are all showing as Status= Started and Start-up Type= Automatic
Multimedia Class Scheduler
Windows Audio Endpoint Builder
If you need to make a change to any of the above, just right click the service and select Properties, then in the dropdown box next to 'Start-up type', select Automatic and click Apply to save the change. Then click the Start button.
****Click the White thumb to say thanks****
****Please mark Accept As Solution if it solves your problem****
****I don't work for HP****
Windows Insider MVP
12-09-2011 02:46 PM
Very sorry to say I had the exact same problem - coming after having trouble with start up, so my patience with hp issues is dropping steadily. :/
Anyway, thank you for your response. I did everything you suggested but got stuck at the final step - right clicked on the taskbar, was given the option to select "speakers" (not "speakers and headphones"), and was unable to select "set default." So I gave the "Services" bit a shot to check the 4 things you mentioned, all of which were fine but the Audio Service - when I told it to start, I was met with the error message "The Audio Service on Local Computer started and then stopped. Some services stop automatically if they are not in use by other services or programs."
12-09-2011 05:51 PM
control panel, system and security, restore computer to an earlier time.
Follow the instructions to get back to a time before the update.
06-13-2012 12:18 PM
Thanks man! this is the second time I've had trouble with the audio and i just referred back to your instructions and it worked flawlessly. I now have my sound back again.