It is especially helpful in the case of a corrupt driver, usually identified by a warning sign next to it. If no audio output device is installed, your primary approach should be to uninstall the driver for the affected device(s) and let Windows install the best one.
Once done, restart the computer, and Windows will automatically install the best driver for the device. Also, look for a device with SST in its name under System devices, and reinstall it too. Click Uninstall in the confirmation prompt that appears. Next, right-click your PC’s sound device, and select Uninstall device. Double-click Sound, video, and game controllers to view the devices for that category. Press Windows + S to open the Search menu, enter Device Manager in the text field, and click on the relevant search result. If these don’t work, these methods surely would. Make sure any third-party antivirus or firewall installed on the PC is disabled. Update the computer to the latest version of the OS. Disable Driver Signature Enforcementīefore we try the slightly more complex solutions here, let’s first do a few quick checks: How do I fix No output devices found in Windows 11?. Why does my computer say no audio output device installed?. Follow along! How do I fix No output devices found in Windows 11? In this article Without further ado, let’s jump into the list of solutions specifically dedicated to the No output devices found in Windows 11. No audio device is installed in Lenovo – The faulty installation of an audio driver on the system is the root cause of this problem, which may be fixed by following our solutions. Also, try reinstalling the driver for the problematic one. No audio output device is installed in Windows 11 (Dell) – You may plug in a wired audio device. No audio device is installed in Windows 11 (HP)- Updating the audio drivers will do the trick in this situation and many others. Some of the most common are the following: Users have reported numerous Windows 11 devices on which they encountered the No output devices found. But we recommend that you install only the verified drivers. Using a driver not signed by Microsoft – Oftentimes, the issue arises when using a driver not digitally signed by Microsoft, and this, too, is easily fixable. Bugs in the installed version of the OS – If the problem started after an update, it’s likely a bug in the latest version. 
Misconfigured settings – Certain audio settings are known to affect the way things work and cause problems with audio devices.Outdated or corrupt drivers – This is the most common reason behind the issue, and simply reinstalling or updating the driver should do the trick.
Here are the reasons why no output devices are found installed in Windows 11: Home › Windows 11 › Repair › No sound output devices found
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