Hi! Let me help you with this issue.
Since you are done with the automated troubleshooting option for Audio, please try to completely remove or uninstall the audio driver.
Here are the steps to completely remove a Device from your computer.
Step 1. Use the Windows key + X shortcut.
Step 2. Select Device Manager.
Step 3. Expand the entry Sound, Video, and Game Controllers. Right-click the problematic device, which is either Realtek Audio, or AMD High-definition Audio, or High-Definition Audio, depending on the audio device installed in your PC, and select Uninstall device.
Step 4. You need to check the option Delete the driver software for this device and then click the Uninstall button.
Step 5. Reboot the computer.
After the reboot, please see if the problem is fixed.
If that still does not work, please visit the support website of your laptop or desktop and then download and install the latest Audio driver, then restart the PC.