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.

If you've started a party on your Xbox, but you're having problems hearing your friends, check out these solutions.

Learn how to set up a connection to a proxy server on your Windows device.

Fortunately, most sound problems can be fixed by following a series of troubleshooting steps. This article provides a comprehensive guide to resolving audio issues in Windows. The tips are listed in order, so start with the first one, see if that helps, and then continue to the next one if it doesn’t.

In some rare cases, if an administrator chooses to deploy the MSRT by using the /q quiet switch (also known as silent mode), this may not completely resolve cleaning for a small subset of infections in situations in which additional cleaning is required after a restart.

Choose who can access recordings and transcripts after Microsoft Teams meetings.

Learn how to find your BitLocker recovery key in Windows.

Learn what to do if you find charges you don't recognize from Microsoft.

To determine if the Microsoft Basic Display Adapter is being used on a Windows device, select one of the following two methods: When the Microsoft Basic Display Adapter driver is being used by a display adapter, Microsoft recommends updating it to instead use the manufacture's driver.

If you’re an administrator, you can use the Office Deployment Tool to manage your Office 2016 Click-to-Run deployment options, such as installations sources, product and language combinations, or deployment configuration options. Download Deployment Tool. Was this information helpful?