There are many problems that can arise when your sound card is not updated properly. Problems can even surface during installation or un-installation of certain devices. This is because some important shared files might get deleted during the un-installation and that might cause a sound problem.
People are usually unaware of such problems and think something might be wrong with the hardware. The whole problem can be fixed by a few simple steps. All that is needed is for you to update your windows drivers.
This tutorial shows how to update drivers for a sound card. Just follow this step by step process and update your system.