For computers with Windows operating systems experiencing sound problems, verify that the speakers are turned on, and then run the "Playing Audio" troubleshooter to locate the source of the problem. If the problem is related to hardware, that hardware may need to be replaced in order to restore sound.Know More
After checking that speakers are connected to the computer and turned on, the next best solution is to run the "Playing Audio" troubleshooter.
Launch the troubleshooter
Click "Start" and then open the "Control Panel." Search for troubleshooters in the search box, and then click "Troubleshooting." Locate "Hardware and Sound" and then click "Troubleshoot audio playback."
Run the troubleshooter
The troubleshooter should start running automatically, during which it might ask the user various questions or test specific parts of the audio system.
Check the Device Manager
If the troubleshooter did not resolve the sound issues, launch the Device Manager by clicking "Start," then "Control Panel." Choose "System and Security." Under "System," click "Device Manager."
Expand the sound category
Double click "Sound, video and game controllers." Look for sound cards or sound processors and check to see if there is a yellow exclamation point next to these devices.
Verify the issue
Right click the device that has a yellow exclamation point next to it and then select "Properties." Under the "General" tab, look at "Device status." Users may need to update the driver or replace a faulty sound processor or sound card.
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