GoKawiilMicrosoft resolves AC-3 audio crash bug via October Patch Tuesday update
Microsoft has fixed a bug that caused games and Windows 11 apps using AC-3 (Dolby Digital) audio decoding to crash or fail to launch after installing the September 2026 preview update KB5124010. The fix arrives in the KB5127648 October 2026 Patch Tuesday update, which Microsoft says affected users on Windows 11 24H2 and later should install.
GoKawiil's interpretation of the reporting above, not reported fact.
The bug illustrates how optional preview updates can still disrupt systems for users who enable automatic installation of early updates, even though most people opting into regular updates were unaffected. Microsoft's pattern of recurring audio-related bugs suggests ongoing fragility in how Windows handles legacy codecs and third-party audio hardware integrations.
- KB5127648 fixes crashes in apps using AC-3/Dolby Digital decoding introduced by KB5124010.
- Only users with 'early update' settings enabled were automatically exposed to the original bug.
- Microsoft has fixed several similar audio-related Windows bugs in recent years.
Source: bleepingcomputer.com, 2026-10-19
Published there as: “Microsoft fixes game, app crashes caused by recent Windows update”
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