DriverCove

No sound on Windows

Most sudden audio failures come down to one of three things: the wrong output device selected, a stopped Windows audio service, or a missing/incompatible audio driver - often after a Windows update. The checks below go from fastest to most thorough.

Quick checks first

1. Check mute and volume

Click the speaker icon in the taskbar: volume up, mute off. Open the volume mixer (right-click the icon) - an individual app can be muted while everything else looks fine.

2. Check the selected output device

Click the speaker icon → open the output device list. If several devices appear (HDMI monitor, USB headset, speakers), try each one. This solves a surprising share of “no sound” cases.

3. Restart the PC and reconnect the device

Do a full restart (not Sleep). For external speakers or headsets: unplug and reconnect the cable or USB, and check the jack is in the right port.

4. Does Windows see the audio device?

Win+X → Device Manager → “Sound, video and game controllers”. A yellow warning icon, or the device missing entirely (with an “Unknown device” under Other devices), points to a driver problem.

5. Did it break after a Windows Update?

Settings → Windows Update → Update history. If a driver update was installed on the day sound died, the update likely replaced your audio driver - the rollback fix below targets exactly this.

If the sound is still missing after these checks, the problem starts to look like a driver one. The next step is to identify the exact audio device and check the installed driver - manually, or automatically if you don't know the model.

Fixing it manually

Restart Windows audio services

  1. Press Win+R, type services.msc, press Enter.
  2. Find “Windows Audio” and “Windows Audio Endpoint Builder”.
  3. Right-click each → Restart. Set Startup type to Automatic if it isn't.

Roll back the audio driver (if sound broke after an update)

  1. Device Manager → Sound, video and game controllers → double-click your audio device (e.g. Realtek High Definition Audio).
  2. Driver tab → “Roll Back Driver” if the button is active.
  3. Reboot and test the sound.

Reinstall the audio driver manually

  1. In Device Manager, open the audio device Properties → Details → Hardware Ids, copy the first value (e.g. HDAUDIO\FUNC_01&VEN_10EC&DEV_0256).
  2. Search that ID in our database to find the matching driver for your Windows version and architecture.
  3. Create a restore point, download the driver from the official source and install it (each driver page has step-by-step instructions).

Know the exact device model?

Search the audio driver database by device name, computer model or Hardware ID. Review matching Windows versions and available driver releases.

Audio chips are rarely labeled on the outside of a PC. The reliable way to identify yours is the Hardware ID: Device Manager → audio device → Properties → Details → Hardware Ids. Realtek codecs, for example, show up as HDAUDIO\FUNC_01&VEN_10EC&DEV_xxxx.

Try for example: Realtek High Definition Audio · read the Hardware ID guide · or browse the driver category

Frequently asked questions

▸Why did sound disappear after a Windows update?

A Windows update may replace or change the audio driver, and the installed version may not work correctly with the audio device. The problem can also be related to Windows audio services or sound settings. If the issue started immediately after an update, reviewing the installed driver, trying a previous version or checking available audio driver updates may help.

▸Windows says the best driver is already installed, but there's still no sound. What does that mean?

It means Windows did not find a driver it considers more suitable through its available sources. It does not confirm that the current driver is working correctly or that no other compatible version exists. You may still need to identify the exact audio device and compare the installed driver with other available versions.

▸Can the correct audio driver be identified automatically?

Automatic detection can identify the audio hardware installed on your PC, check the current driver information and show available driver updates without requiring the exact model name or Hardware ID. The scan and results are free, and nothing changes until you review the results and choose what to apply.

Other common problems