How do i fix no audio device installed in windows 11?

I am encountering the same message ("No audio device detected") on a brand new Dell tower unit - not a laptop. My IT guy tried everything in his bag of tricks to no avail. After several hours and several hundred dollars of his time, the workaround he came up with was for me to purchase a "Sound Blaster Play! 3" USB dongle, plug that into the tower unit, and run the speakers from that - bypassing the internal sound card altogether. It works, but it's galling, to say the least. And for all of you with laptops, it's not going to help. Sorry.

Here's a link to the external device. https://us.creative.com/p/sound-blaster/sound-blaster-play-3

Note to interested parties: My platform is not a laptop it is a Mele Mini PC and I was not using external speakers per se, I was using my TV/monitor with an hdmi cable connecting the PC to the monitor. This worked fine before I accepted upgrading from Win10 Pro to Win11. Now only the video works, the audio keeps saying no audio device connected, no matter what. Also, I have a second identical PC that I did NOT upgrade to Win11, that one is still on Win10 and working fine audio and video via a separate hdmi cable to the same monitor. Personally, I've given up trying to fix this. When I want sound, I use the Win10 PC; I use the Win11 PC only for storage of Research materials that don't require audio playback. Long story short: Microsoft has screwed us. If anyone is bold enough to start a class legal action against MS over this, you can count me in.

Wrong. It certainly does affect desktops. I have 2 identical desktop PCs both working fine on Windows 10 Pro. I accepted the upgrade to Windows 11 on one machine and I am now trapped with a system that simply will not recognize any audio device internal or external. The PC that I did NOT accept Win 11 upgrade still works fine. This is a serious flaw in the production and distribution of Windows 11 by Microsoft and I suspect intentionally caused by either internal sabotage or some warped marketing campaign.

I also have two identical PCs that came with Windows 10 Pro preloaded. I upgraded only one machine's OS to Windows 11 and immediately lost audio on it. Neither machine has a Realtek audio device. I agree with your guess that someone at MS did either willfully or accidentally exclude probably MANY sound devices from recognition by the Win 11 OS. I'm not a computer engineer either so don't quite know how they did it but they sure as heck did it. I also agree with your admonition to Raju to stop wasting our time and money trying to fix this problem with wild guesses. Unless he personally was involved in writing the code for Win 11, he is in the same sub-knowledge status as everyone else in this community about this particular problem that goes back to Redmond, WA, the HQ of the dark lords of chaos.

ive tried troubleshooting but it couldnt identify the problem
ive also tried rebooting my device
i also cant update my high definition audio device which i want to use because the other one doesnt work too(windws encountered a problem installing the drivers for your device code 10)
my other audio driver is working fine but still it says no audio device installed(this audio driver is the one written in japanese)
ive also came to the intel website to look up for my drivers but it says its up to date

I have the same problem