Everything played fine yesterday, but after today's Windows update the speaker icon has a red cross, hovering over it shows "No audio output device is installed", or the sound is going somewhere else — to a monitor with no speakers or to headphones that are switched off. It's an annoying situation, especially if the computer is used for online lessons, video calls or audio work. Let's look at why updates break sound and how to get it back.
Why an update affects sound
Sound on a computer is handled by a chain: the audio chip on the motherboard or a separate sound card, that chip's driver, the Windows audio service and the selected output device. A Windows update can touch any link in the chain: replace the driver with a different version, reset the default device settings, or update firmware or chipset drivers that the audio subsystem depends on.
The main causes
The manufacturer's driver replaced with a generic one
Windows Update sometimes installs the basic "High Definition Audio Device" in place of the Realtek driver or the laptop maker's driver. With it, the headphone jack, microphone, laptop speaker amplifier or the manufacturer's control panel may not work.
New laptops and the Intel Smart Sound driver
On modern laptops, sound passes through an additional controller. If its driver isn't installed or doesn't match the audio driver's version, the system says no audio devices are found, even though the sound chip itself is fine.
The wrong default device
After an update, Windows may choose the HDMI output to the monitor, a docking station or Bluetooth headphones that aren't connected as the output device. The sound "is there" but goes to the wrong place.
Disabled services
If the Windows audio service won't start — because of an "optimiser", system damage or a conflict — the sound disappears completely.
Sound enhancements and third-party programs
Software sound "enhancers", virtual audio devices and streaming and recording programs sometimes clash with new drivers.
A hardware fault
If the sound disappeared "after an update" but that coincided with the laptop being dropped, coffee being spilt or a power surge, the cause may be the chip, the jack or the speakers themselves. The update is just a coincidence.
How to tell a software problem from a hardware one
- Sound in headphones but not from the laptop speakers — possibly the amplifier or speakers, but more often the driver.
- Sound over HDMI or a USB headset but not from the built-in audio — the built-in chip or its driver.
- Sound works when booting from other media — the problem is definitely in Windows.
- Crackling and distortion at any volume after a knock or a spill — most likely physical damage to the speakers.
What not to do
Don't download "sound drivers" from unofficial sites or "automatic driver update" programs — they often install a driver not meant for your model, after which the sound disappears for good and adware turns up in the system. Nor should you delete every audio device in Device Manager without knowing which driver to install afterwards.
A quick check that's always safe: look at the sound output selector in the taskbar and make sure the right device — speakers or headphones — is chosen, and that the volume and mute settings in individual apps such as your browser or video-call program haven't changed. A surprising share of "lost sound" calls end right there.
What our technician does
- Identifies the audio chip and controller models and checks which driver is installed.
- Checks the output devices, audio services and third-party sound programs.
- Installs the correct drivers from the laptop or motherboard maker's website.
- If needed, stops Windows from automatically replacing the working driver.
- Checks the speakers, jacks and microphone, and repairs any hardware fault.
A real example
A schoolgirl in Nadzaladevi lost the sound on her laptop after a Windows 11 update, the evening before an online music lesson: the system said no output devices were installed. Our technician found that the update had installed a new version of the audio controller driver that was incompatible with the manufacturer's audio driver already on the laptop. We installed a matching set of drivers from the laptop maker's official website, stopped those drivers being replaced automatically, and checked the speakers, headphones and microphone. The lesson went ahead without a hitch.
It's also worth thinking ahead if sound is essential to your work. Teachers, musicians and anyone who relies on video calls can ask us to note the exact driver versions that work well on their laptop and keep a copy, so that if an update ever breaks things again, the working set can be restored in minutes instead of hours.
Keeping a simple USB headset to hand is a good emergency fallback too: it works without separate drivers and can save an important call while the main problem is being fixed.
Call a technician
If the sound has disappeared after a Windows update, we'll come to any district of Tbilisi around the clock. Learn more on our driver installation, laptop repair and computer diagnostics pages.
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