GoKawiil
Tech News
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.
Microsoft confirmed that installing the optional September 2026 KB5124010 preview update for Windows 11 can crash games, media players and productivity apps that rely on built-in AC-3 (Dolby Digital) audio decoding. Affected apps may fail to launch, close unexpectedly, or work until audio features are triggered. Microsoft says the issue mainly hits legacy software and has not given a timeline for a fix.
Microsoft released KB5124010, a September 2026 optional preview update for Windows 11 24H2 and 25H2, containing 46 changes but no security patches. The update adds Emoji 17.0 support, an 'Open apps maximized' accessibility setting, Bluetooth reliability fixes, and a new option to remap the Copilot key to act as Right Ctrl or Context Menu.
Microsoft's KB5124010 update, pushed to Windows 11's stable channel this week after appearing in the Release Preview channel, is causing crashes in games protected by the Javelin anti-cheat system, including Battlefield 6 and Wardogs. Players report the games crash within seconds of launch with little or no error information, though Wardogs users see a WD-L020 error code. Uninstalling the update has been the only workaround confirmed by affected players and, for Wardogs, by a Team17 representative.