Hi
I've been using the WDM driver as my default audio device for some months with MC v28, Windows 10 upgraded to Windows 11 22H2 64-bit.
Since the last Windows cumulative security update (
https://support.microsoft.com/en-us/topic/december-12-2023-kb5033375-os-builds-22621-2861-and-22631-2861-90f983aa-efb6-4caa-9cab-7e5cfa00ed36), the WDM consistently fails to start.
Here is error reported by Event Viewer:
Device ROOT\MEDIA\0000 had a problem starting.
Driver Name: oem9.inf
Class Guid: {4d36e96c-e325-11ce-bfc1-08002be10318}
Service: jrvad_service
Lower Filters:
Upper Filters:
Problem: 0x0
Problem Status: 0xC00000E5
The status code 0xC00000E5 appears to be a security-related issue. Most people encountering this error seem to have trouble because of virus software. I'm just running Windows Security.
I have turned the driver on and off several times, running as administrator, no effect.
Deleted the device and reinstalled the driver as well.
At one point I restored W11 to the previous state before the latest updates and WDM worked. But then MS helpfully updated my PC again and once again, it fails to start.
Also, I have uninstalled and re-installed MC 28 without success: the driver appears in sound devices, device manager reports as working properly, but fails to start.
Thanks for any help.
Phil