A recent update to Microsoft’s Windows 11 operating system, KB5124010, has been causing problems for some users. Specifically, games and apps that use a certain type of audio decoding called AC-3 (Dolby Digital) are crashing or malfunctioning after installing the update. This is not just limited to gaming software; media players and productivity applications are also affected.
The issue affects devices running Windows 11 24H2, where the “Get the latest updates as soon as they’re available” option is enabled. However, Microsoft has noted that many modern apps don’t use Windows for this type of encoding and aren’t impacted by the problem. Instead, it’s mostly legacy applications that still rely on Windows’ built-in audio decoding that are crashing.
The AC-3 codec is used in a wide range of applications, from games to media players, but Microsoft has explained that the code component responsible for the crashes is most commonly used in older software that hasn’t been updated. Modern apps often include their own audio decoding components, which means they’re not affected by this issue.
Microsoft has acknowledged the problem and is working on a fix, but hasn’t provided an estimated timeline for when it will be resolved. In the meantime, users who experience problems with their games or apps can try toggling off the “Get the latest updates as soon as they’re available” option to prevent the update from installing automatically.
It’s worth noting that this is not the first time Microsoft has had issues with audio-related bugs in its Windows 11 operating system. Last month, the company released emergency updates to fix another known issue causing USB audio problems and Remote Desktop Services failures. This latest problem highlights the challenges of supporting legacy applications on modern operating systems.
For users who rely on their computers for work or entertainment, this is a reminder that even with mandatory updates, there can be unexpected consequences. It’s essential to stay informed about any issues affecting your software and hardware, and to take steps to mitigate potential problems before they cause significant disruptions.
In the long run, this issue may seem minor compared to more severe security threats, but it serves as a reminder of the importance of careful testing and quality assurance in software development. As technology continues to evolve at breakneck speed, we can expect more complex issues like this to arise – making it crucial for developers and users alike to prioritize transparency, collaboration, and proactive problem-solving.
Source: Bleeping Computer — 2026-10-05