Gandalf_The_Grey
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- Apr 24, 2016
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Microsoft's Windows 11 operating system will not support the Ac-3 codec by default going forward. In a somewhat surprising and sneaky move, Microsoft announced the end of support on a support page.
There, Microsoft writes that "beginning with Windows 11, version 24H2, the AC-3 codec is no longer included with Windows". The removal of the code means that users may not play media content that relies on the codec on their devices using built-in players or some external players.
Microsoft does note that device manufacturers pre-install the AC-3 codec on their devices often. If that is the case, AC-3 support is available on these devices. The support page offers no explanation on the removal.
Third-party media players such as VLC Media Player support AC-3 out of the box. They do not rely on codecs integrated in Windows for playback. Integrated media players, such as Windows Media Player and Windows Media Player Legacy, only play media formats if codes are installed on the system.

Microsoft drops AC-3 (Dolby Digital) Codec support in Windows 11 version 24H2 - gHacks Tech News
Microsoft's Windows 11 operating system will not support the Ac-3 codec by default going forward, but there is a way to restore support.
www.ghacks.net