To take this one step further I’ve also automated the script to be executed automatically at computer startup with the help of a Scheduled Task. Luckily, it’s possible to automate the task with Powershell.Įasy as that, we use Powershell to disable the NVIDIA High Definition Audio driver so the result is like this Īnd my headphones are now the default device again. It’s also possible to disable the NVIDIA High Definition Drivers in Device Manager, which is once again manual work.Īnd next time the Graphics Driver is updated, the audio driver is reinstalled so the devices that were previously disabled are now enabled again. And most of the times also disabling all the other playback devices by right clicking them. I’m then manually selecting the Headset and making it the default device for Playback and Communication. Nvidia audio driver showing all monitors as playback devices. Making it look like this, a long list with monitors (I’ve got 5 connected) and audio playback devices I don’t want to use. Open an administrative Command Prompt window, and then run the following command to check the current permissions:Ĭopy the output string from step 1, append it with (A CCLCSWLOCRRC SU), and then run the following command to add the access permission to Mslldp.Each time I update my NVIDIA Graphics drivers no matter if it’s via Windows Update or via Geforce Experience or manually (ok, manually I’m able to choose to NOT install the audio driver so a kind of workaround), it’s also reinstalling the NVIDIA Audio Driver so randomly one of my displayport connected monitors will be the new and default audio output rather than my Headphones. To prevent this entry from being logged, grant the required permission to the Microsoft Link-Layer Discovery Protocol driver (Mslldp.dll) to process System Writer. This event log entry can be safely ignored.
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\MsLldp\Security The binary security descriptor for the driver is located here:
When System Writer runs as a cryptographic service and tries to read the Mslldp.sys information from a Microsoft Link-Layer Discovery Protocol driver, the "access denied" error is generated. This problem occurs because VSS System Writer does not have permission to read the NT AUTHORITY\SERVICE (service account). OS Name: Microsoft Windows Server 2016 Standardġ0:15:52 PM - Warning bpbrm (pid=20340) from client : WRN - can't open object: System State:\System Files\System Files (WIN32 3758134305: Unknown error)ġ0:15:52 PM - Error bpbrm (pid=20340) from client : ERR - Error encountered while attempting to get additional files for System State:\Ĭryptographic Services failed while processing the OnIdentity() call in the System Writer Object.ĭetails: AddLegacyDriverFiles: Unable to back up image of binary Microsoft Link-Layer Discovery Protocol.
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