Every computer user experiences system problems on occasion. Luckily, PCs have a built-in diagnostics tool that can help. Use the Device Manager to quickly check if you are having any hardware issues that may lead to sound problems.
Right-click the icon on your desktop that reads "My Computer." This will bring up a drop-down menu of options. Click on the "Preferences" option.
Click on the tab labeled "Hardware" at the top of the "System Properties" window. The "System Properties" window provides detailed information on every aspect of your computer. The "Hardware" tab contains options on diagnosing and dealing with hardware issues, which problems with sound would fall under.
Click on the "Device Manager" option. The Device Manager provides a list of every piece of hardware--from the CPU to speakers--that is plugged into your computer.
Click on the tiny "+" symbol next to the category "Sound, Video and Game Controllers." This will expand the listing to reveal every piece of sound equipment you have connected to your computer, including your sound card and your speakers.
Look for a tiny yellow exclamation point next to the devices listed. If one is present, that particular device is having problems that could contribute to any sound problems you may be experiencing. Click on the name of the device to diagnose any problems. If no exclamation point is listed, but your computer is having any sound problems, try plugging your speakers into another computer to see if the problem persists. If it does, the problem lies with your speakers, which probably need to be replaced.