Problem Description
After an automatic update of the Windows 10 operating system, there was a problem that the small speaker displayed a red cross, and the speakers and earphones could not be used.
Looking at the system settings as shown in the figure above, it is found that the problem is that the input and output sound devices cannot be found.
Solution
Download the driver: Realtek-High-Definition-Audio-Driver
My computer is a Dell G5, so enter the official website address of Dell driver download: Drivers and Downloads | Dell China
After entering, the product model will be automatically identified:
Click the search box to select your device to enter the driver download interface:
Select the sound card driver and click to download.
After the download is complete, double-click to run the exe file: Follow the operation prompts to install. After the installation is complete, you will be asked to restart the computer. Follow the prompts to restart; after restarting, the sound system can resume normal use
