Audio comes out from both speakers and headset after windows 10 update

Model 27-k150xt (HP Envy 27) with IDT High Definition Codec.

I updated to Windows 10 pro from Microsoft when the upgrade was free about 5 months . version 1607 build 14393.576. I never noticed the issue until yesterday.

Plug in a headset known to be working fine on other Windows 10 devices, but sound continues from desktop as well as headset. Other headsets produce the same results. I know this was not an issue when desktop was windows 7.

* Tried steps online for setting default to headset. No luck.

* HP site says my drivers are up date.

* I've tried installing a driver for IDT I found online, but says I'm already up to date
when I run it or that not compatible with my hardware.

* Windows Update is current.

Worth it to pay for HP support?

Any help or ideas is greatly appreciated.

Welcome to the Ten forums.

This article talks to your issue or your machine, yes it is labelled Win 8. The error described in article is more to do when your headset has a mic and you talk the sound comes out both places.

It specifically mentions, when hearing sounds from both Headset and Speaker, going into recording tab and unclicking "Listen to this device".

You didn't mention if your headsets had mics. Might be worth a peek.

HP PCs - Resolving Headphones and Headset Problems (Windows 8) | HP(R) Customer Support

Re the sound driver updating. I would get it from HP, which you said was up to date. If you uninstall device there is an option to uninstall software. If you decide to explore this route, create a restore point and have a copy of a "Working driver" on hand so you can return.

Can't comment on value of HP support but they likely have a forum that deals with your family of machines.

I don't have IDT so I can't check, but Realtek has a control program (HD Audio Manager) and one of the options in the control program is to either mute the speakers when a headset is plugged in, or not mute the speakers. Look around in your PC and see if there a similar program.

RIGHT click on the Start "Windows" icon on the lower left and then LEFT Click on Control Panel. Click on Hardware and Sound and see if something is listed.