What to do if there is no sound after upgrading win10

1. If you are using a VIA HD Audio sound card, there may be a phenomenon in which sound can only be heard in certain applications. Right click on the sound icon in the taskbar and select “Playback device”.

▲Select “Playback Device”

▲Select the appropriate device as the default communication device (here as a demo, the demo device does not use the VIA sound card)
Set the default communication device After that, open the device properties (right-click menu in the above figure):

▲Switch to the Enhance tab and remove all enhancements.
2, if you are using Realtek audio sound card, when you encounter 0x000005b4 error prompt, you can fix it by modifying Group Policy. Click the taskbar search button, type gpedit, and press Enter to open the Group Policy Editor.

Open Computer Configuration ——Administrative Templates——System——Device Installation:

▲ Find “Install Device Installation Timeout” on the right side, double click to open the settings window.

▲ Select Enabled to change the default timeout from 300 seconds to 1800 seconds and click OK.
3, If the above method can not solve the problem, you can try to roll back the driver.
Right click on the start menu in the lower left corner and select “Set Manager”.


▲ Find <;sound input and output", right click on the default sound output device and select Properties.

▲Switch to the "Drivers" tab, click "Return Drivers". (The system that has been rolled back or newly installed is not available here)
The system is finally rebooted.
4, re-install the sound card driver
If the above method can not be solved, you can try to re-install the sound card driver. You can find the driver on the official website of the brand machine or the official website of the sound card.