There can be a number of reasons why the sound may be missing from your personal computer (PC). It ranges from something as simple as incorrect setting or wrong audio devices connected to the system, to bigger problems like corrupted audio drivers or damaged hardware components.
The first thing you should do when sound stops working on your PC is to check if the volume is correctly adjusted and if the mute button is off. If you are using external speakers, make sure they are connected correctly with no loose connections. Check the headphone jack, power source, and sound settings to ensure that the sound is being routed correctly.
If the above steps fail, you should check if the correct device is selected as the default audio output source in the Sound Settings. You can open the ‘Sound Settings’ dialog by right-clicking on the speaker icon in the system tray. Once the Sound Settings dialog opens, select the correct playback device and set it as the default device.
You should also check if there is any problem with the sound card installed in your PC. A defective sound card can cause the sound to stop working. If the sound card stops functioning, you need to replace it with a new one.
Sometimes the audio drivers installed on your PC become corrupt due to malware or virus. If this is the case, you will have to uninstall and reinstall the audio drivers again. You can also try updating the drivers to the latest version to see if that helps.
It is also possible that the sound issue is caused by a hardware problem. In such cases, you will have to troubleshoot the hardware components and identify the part that needs to be replaced. Common components that can cause sound issues include the audio header on the motherboard, the audio card, and speakers.
If none of the above solutions help, you should contact a professional for assistance. They will be able to detect and resolve any underlying issues preventing sound from working correctly on your PC.