High Definition Audio Device
High Definition Audio Device is the audio driver that comes with Windows from Microsoft. It plays sound on most PCs with no download. Use your PC maker's driver instead when you need extra features such as sound effects or a control app, or when the generic driver gives no sound or poor quality.
Checked October 30, 2026 against the manufacturer's own pages.
The short version
What to install and where it comes from. Every link goes to the manufacturer or Microsoft, never to a copy.
Official files only, nothing bundled
Step by step
See which driver is active
Open Device Manager, expand Sound, video and game controllers and open your audio device's Properties. On the Driver tab, Driver Provider says Microsoft when the generic driver is in use.
Run Windows Update
Go to Settings, Windows Update, Check for updates, then Advanced options and Optional updates. Windows may offer a driver for your exact codec.
Check the PC maker
Look up your model on the maker's support page, under Audio. Maker drivers carry the settings app and tuning for the speakers in that machine.
Switch back to the generic driver if needed
Right-click the device, choose Update driver, Browse my computer, Let me pick from a list, and select High Definition Audio Device. Restart afterwards.
Test each output
Play a sound on the speakers, then on headphones, then on the HDMI display. Note which one fails, since the fix differs for each.
What the name means
High Definition Audio, or HD Audio, is a hardware design for PC sound that Intel specified. A chip that follows it is called a codec. Microsoft supplies two drivers in Windows to run such hardware: a bus driver for the controller and a class driver for the codec. The class driver is what you see in Device Manager as High Definition Audio Device, with Microsoft as the provider.
Microsoft’s own documentation says users can rely on this system-supplied class driver when the maker offers no custom audio driver. It adds that a codec can have proprietary features that only the maker’s driver can use.
When the generic driver is the right choice
It is a good choice when you only need to hear sound. It is also the safest fallback if a maker driver causes crashes, crackling or missing devices. Microsoft’s low latency audio guide even describes choosing High Definition Audio Device in the driver list to move a PC back to the inbox driver, then restarting.
When to replace it
Replace it if a feature you had is gone. Examples are a control app, a surround setting, a microphone array or a speaker profile made for your laptop. These come from the maker’s package, found on the PC maker’s support page. Windows Update sometimes carries it too. Only fall back to a chip maker’s page if the PC maker offers nothing and you know your codec. Realtek, for example, has its own downloads, and our Realtek audio page explains that path.
Never install a driver from a site that is not the maker’s. A wrong audio driver can leave you with no sound at all, and the generic driver is the way back.
Questions
Is the High Definition Audio Device driver good enough?
For plain playback, yes. Microsoft built it so users can rely on it when the hardware maker provides no custom driver. You may lose maker features, such as an equaliser or special effects.
Why did my Realtek driver turn into this?
Windows sometimes swaps in its own driver after an update or when a maker driver fails to install. Reinstall the maker's version from the PC maker's support page.
Can I download it from a website?
No. It is part of Windows. If it is missing, run Windows Update or repair Windows rather than downloading a file.
Is it the same as HD Audio?
Yes for this purpose. HD Audio is Intel's name for the hardware design. Microsoft's driver is the class driver that supports codecs built to it.