Microsoft fixes app crashes caused by Windows KB5124010
Original title: Microsoft fixes game, app crashes caused by recent Windows update
The October 2026 Patch Tuesday update KB5127648 fixes the issue on Windows 11 24H2 and later.
Microsoft fixed a known issue that made games and Windows 11 apps using AC-3 (Dolby Digital) decoding crash after the September 2026 preview update KB5124010. That preview is optional unless "Get the latest updates as soon as they're available" is enabled. Apps could fail to launch, close without warning, or break when features such as music playback were used. Microsoft says KB5127648 addresses it and recommends installing the latest security update on Windows 11 24H2 and later.
- Microsoft acknowledged the AC-3 crash issue about two weeks before this fix note.
- Many apps that do not use Windows built-in decoding for this encoding are unaffected.
- Apps that use the legacy AC-3 codec often ship their own decoders.
- The note also recalls earlier Windows audio bugs, including USB audio issues after KB5124008 and KB5124012.
- 1.Install KB5127648, the October 2026 Patch Tuesday update, on affected Windows 11 24H2 and later systems.
- Vendors
- Microsoft
- Products
- Windows 11
From the original article
2 min read at bleepingcomputer.com
Microsoft has resolved a bug that caused games and apps using AC-3 (Dolby Digital) audio decoding to crash after installing the September 2026 Windows 11 preview update (KB5124010). [...]
By Sergiu Gatlan · bleepingcomputer.com
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