Updating dell computer
Expand "Sound, video and game controllers" by clicking on the arrow, then right-click over your sound device and choose Properties.
Click on the "Driver" tab to check the driver provider, date and version.
On a 64-bit operating system, the drivers of the sound device must be 64-bit.
You may need to find out the name, specifications and current driver details for your sound device, so you can update it correctly.
If an update has occurred at any time, the button will be active.
You can click this button to revert the driver to its previous installation.
You don't want drivers from Microsoft - in most cases these are only generic drivers, not specifically matched to your hardware.
After the update (even if more recent drivers were not found), you should right-click over the device again, click Properties and then on the Driver tab to check the "Driver Provider".
To do this, you can use Device Manager on Windows, System Profiler on a Mac or the /lspci or /lsusb commands on Linux.