I have a Windows 10 Enterprise Version 20H2 OS Build 19042.1288 System that is up to date as 02:48 am this morning 10/14/2021.
No Sound will Play from the System.
By the Clock on the Taskbar there is a Speaker ICON with a Red "x".
Right clicking reveals Speaker Setup (UNKNOWN) Off.
Right Clicking and Running the Troubleshooter cannot find an issue.
Going to Device Manager all devices are installed and working properly.
Reinstalling Drivers did not change the situation.
Uninstall, Reboot and Reinstall each Device did not change the situation..
Visiting Manufacturers Website Support {DELL} and updating BIOS and all drivers had no improvement.
Restoring to a 30 day old System Restore point failed because the system could not access certain files, possible due to anti-virus.
Left Clicking on the Speaker Icon results in "you'll need an app to open this ms-contact-support link" popup.
Using Elevated Powershell to re-register all apps does not resolve support link issue or sound issue.
My Employers Tier-1 and Tier-2 tech support are out of ideas.
Potential Next Steps are as follows unless some one can suggest an alternative.
Plan A - Turn off Anti-Virus and rerun System Restore
Plan B - Run Sysprep and bring the system OOB again to see if this resolves the issue.
Plan C - Restore the Macrium Image of the Functioning System made after the last major software packages were installed.
Surely this should be fixable as Device Manager is seeing the Sound Devices but Windows is Not.
