How to mute the microphone with a keyboard shortcut?

I had the same issue.  I found a workable solution.  Part of my job is interacting with live streaming video so I too needed something that was fast that didn't interfere too much with what I was doing.  It is not a keystroke, but it ended up being the best option for me.  Because I have a Dell laptop I have a Dell Audio app that I have pinned to the taskbar. When I click it, it takes me immediately to the microphone sound controls.  So, with two quick mouse clicks I can mute.  It is also a small window so it can easily pop up in front of what you are doing, and disappear again just as fast.  

Good luck!  

H

Thanks but as the first line of my question stated.  WITHOUT using any third party software.   I am in a managed environment and cannot install any software in order to achieve this. 

Hello Kurt,

We'd like to know if you're still having issue with your device.

Give us a nudge if you need more help.

I know it was an old post, but think I have your answer.

Found the simple answer you need here: https://elonblackman.wordpress.com/2010/01/18/how-to-mute-microphone-in-windows-7/

Not as good or convenient as the 98 and XP controls with mics on the mixer, but closer than writing macros and finding things that the help desk won't let you do.

I know it was an old post, but think I have your answer.

Found the simple answer you need here: https://elonblackman.wordpress.com/2010/01/18/how-to-mute-microphone-in-windows-7/

Not as good or convenient as the 98 and XP controls with mics on the mixer, but closer than writing macros and finding things that the help desk won't let you do.

The solution I found today (after much Googling) was the installing of the devcon.exe which you can extract from the toolkit:

EnterpriseWDK_rs2_release_15063_20170317-1834.zip

Make sure you use the correct version 32 or 64 bit.  It's in the directory "\Program Files\Windows Kits\10\tools\x64" in the zip file.

I copied it to my Windows\system32 directory.

Use Devcon to find the HardwareID of the microphone.

I then wrote a quick batch file to toggle the microphone on and off.  Has to be run as admin though.

@echo off
cls
devcon status  @SWD\MMDEVAPI\{0.0.1.00000000}.{6355EED0-821D-4586-82E0-3C583C11A927} >%temp%\mic.txt
cls
find "running" %temp%\mic.txt >nul
if %errorlevel% equ 1 goto enable
goto disable

:disable
devcon disable  @SWD\MMDEVAPI\{0.0.1.00000000}.{6355EED0-821D-4586-82E0-3C583C11A927}
exit

:enable
devcon enable  @SWD\MMDEVAPI\{0.0.1.00000000}.{6355EED0-821D-4586-82E0-3C583C11A927}
exit