Last week, I restarted my PC and suddenly without anything obvious that could have caused it, the audio stopped working. The volume icon on the bottom right has an X in a red circle and when I mouse over it, it says "The Audio Service is not running."

To make things short, I've been looking into this a lot and I eventually found that in Services, the "AudioEndpointBuilder" service that is a dependency for the audio service isn't running. When I try to start it, I get "Error 126: The specified module could not be found."

Looking in the System32 folder, I see that I have an audiosrv.dll, but I do not have an AudioEndpointBuilder.dll. I've seen conflicting things about whether the AudioEndpointBuilder service actually has its own .dll or if it uses audiosrv.dll, but I looked in Regedit and from what I can tell, an AudioEndpointBuilder.dll is what it's looking for.

I've already tried sfc /scannow and DISM.exe. The former detected corrupted files but couldn't fix all of them. The latter did nothing, as far as I can tell.

Does anyone here know how to fix this?