If you encounter "No Audio Output Device is installed," try these steps: run the audio troubleshooter, ensure Windows Audio service is running, reinstall audio drivers via Device Manager, install latest drivers manually, enable audio in BIOS/UEFI, and run SFC to repair system files.

If you're encountering the 'No Audio Output Device is installed' error on your Windows system, it typically indicates that the operating system cannot detect a functional audio device. Here are several methods to resolve this issue:

The operating environment of this tutorial: Dell XPS 13, Windows 11

1. Run the Audio Troubleshooter

Windows includes a built-in troubleshooter designed to automatically detect and fix common audio problems. This tool can identify misconfigurations, driver issues, or disabled services related to audio output.

• Press Windows I to open Settings.
• Navigate to System > Sound > Troubleshoot common sound problems.
• Follow the on-screen instructions and apply any recommended fixes.

2. Check Audio Services Status

The Windows Audio service must be running for sound devices to function. If this service is stopped or disabled, no audio output will be available regardless of hardware status.

• Press Windows R, type services.msc, and press Enter.
• Locate Windows Audio in the list.
• Ensure its status is Running and Startup Type is set to Automatic.
• If not running, right-click it and select Start.

3. Reinstall Audio Drivers via Device Manager

Missing or corrupted audio drivers are a common cause of this error. Reinstalling the audio driver forces Windows to detect the hardware and load the appropriate software components.

• Right-click the Start button and select Device Manager.
• Expand the Audio inputs and outputs section.
• If no devices appear, expand Sound, video and game controllers.
• Right-click each audio-related device (e.g., Realtek Audio, Intel Smart Sound Technology) and select Uninstall device.
• Restart your computer. Windows will attempt to reinstall the drivers automatically.

4. Download and Install Latest Audio Drivers Manually

Automatic driver installation may fail if Windows does not have access to the correct version. Installing the latest driver directly from the manufacturer ensures compatibility and full functionality.

• Visit your PC or motherboard manufacturer’s official support website.
• Search for the latest audio or sound driver compatible with your model and Windows 11.
• Download and run the installer, following all prompts to complete installation.
• Restart your computer after installation completes.

5. Enable Audio Device in BIOS/UEFI

In some cases, the onboard audio controller may be disabled in the system firmware. This prevents Windows from detecting any audio hardware during startup.

• Restart your computer and enter BIOS/UEFI by pressing the designated key (commonly F2, Del, or Esc).
• Navigate to the Advanced or Integrated Peripherals menu.
• Look for an option such as HD Audio Controller or Onboard Audio.
• Set it to Enabled, save changes, and exit.

6. Use System File Checker (SFC)

Corrupted system files can interfere with hardware detection and driver loading processes. Running SFC scans and repairs protected system files that may be affecting audio functionality.

• Open Command Prompt as Administrator by searching for cmd, then selecting Run as administrator.
• Type sfc /scannow and press Enter.
• Wait for the scan to complete (may take 15–20 minutes).
• If issues are found and repaired, restart your computer and check audio output.

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