AC-3 is an audio codec that supports multi-channel (“surround sound”) audio. It's also known as Dolby Digital. On versions of Windows prior to Windows 11, version 24H2, the AC-3 codec is included. Beginning with Windows 11, version 24H2, the AC-3 codec is no longer included with Windows.

First, you'll need to download the troubleshooter. Download troubleshooter. If you see the File Download box when you start downloading, select Run or Open. The troubleshooter provides steps for you to follow. If a program isn't listed in the uninstall options, you'll be asked for that program's product code.

Alternatively, if installation doesn't start automatically, browse the disc to find the program setup file, usually called Setup.exe or Install.exe. Open the file to start installation.

Learn how to get older apps or programs to run on Windows 10 or Windows 11 by adjusting compatibility settings.

There are different ways to remove apps and programs, so if you can't find the one you're looking for, you can try another location. Note that some apps and programs are built into Windows and can't be uninstalled. You can try to repair a program first, if it's just not running correctly.

Windows Media Player is a built-in multimedia player that comes with Windows. While it is a reliable and widely used application, users may encounter errors and issues from time to time. This article aims to provide guidance on troubleshooting common Windows Media Player errors.

VC-1, MPEG-4, and H.264, H.265, and H.263 codecs: Collectively known as "Standards-based codec components." Enable Windows 10 programs such as Windows Media Player to support activities that include the playback and recording of multimedia files that are encoded with standards-based codecs.

Here’s how to install the Media Feature Pack: On Windows 10 N: Select , then select > Apps > Apps and Features > Optional features > Add a feature. Find the Media Feature Pack in the list of available optional features. On Windows 11 N: Select , then select > Apps > Optional features.

Fixes two Windows Media Center issues in Windows 7.

Play music and video in more formats and stream it to more places with Windows Media Player 12.