Windows 11 users are currently facing a notable challenge following the rollout of update KB5124008, which has been linked to significant audio issues. This update, part of Microsoft’s monthly Patch Tuesday cycle on September 8, aimed to enhance security across systems running Windows 11 versions 25H2 and 24H2, elevating them to Build 26200.9445 and Build 26100.9445, respectively. However, the introduction of this update has led to a series of complications, particularly affecting audio functionality.
According to reports from Windows Latest, the update has been associated with various problems, including Explorer.exe crashes that can result in a black screen, disruptions in File History backups, and issues with applications reliant on Linux-based virtual machines. Additionally, users have encountered Remote Desktop difficulties and GPU-related concerns on certain AMD systems. Microsoft has acknowledged these issues, but the latest revelation regarding audio malfunctions has raised further alarms.
In an updated notice, Microsoft confirmed that some audio devices may fail to initialize or produce sound after the installation of the recent updates. Users experiencing this issue may find their audio devices completely unresponsive upon rebooting their systems. Unfortunately, increasing the volume will not remedy the situation, as the device may not be operational at all. Furthermore, if the problematic features are not activated on a user’s PC due to the staged rollout of the update, they might not encounter the issue immediately, but could still face it later unless a patch is issued.
Compounding the frustration, the Sound settings page may also become unresponsive, complicating troubleshooting efforts. Users are encouraged to check the Device Manager for error logs, which may reveal the message: “This device cannot start (Code 10).” Attempts to uninstall or disable the audio device in hopes of restoring functionality are likely to be futile, as the root of the problem lies within the Windows Update itself.
Windows 11 KB5124008 can also break microphones and multichannel audio
Microsoft has specifically linked the audio issues to USB Audio Class 1.0 devices, but the impact extends beyond basic audio playback. Reports indicate that microphones may also cease functioning on affected devices. Even when audio devices appear to start correctly, there is a risk that Windows may misconfigure the audio settings. Users relying on multichannel audio features, such as 3D audio or 8-channel configurations, may suddenly experience a loss of sound.
As a temporary workaround, Microsoft suggests switching the affected device to a 2-channel mode. If this does not resolve the issue, users might consider utilizing different audio hardware, as preliminary observations suggest that wireless audio devices remain unaffected by the current problems. While Microsoft has yet to provide a permanent solution or patch, the company has confirmed that it is actively working towards a resolution to restore normal audio functionality for its users.
