Open "Control Panel" from start menu. Open and find "Sound, Speech and Audio devices". Open and then click on your "Sounds and Audio Devices" or however yours is labeled. When "Sounds and Audio Devices" window opens, click on "hardware". From here find your Audio device such as "Realtek High Definition Audio" and double click, From the next window you will see a tab for driver. Click to open and then you will see all your driver info. This is for Windows XP but should work similiarly with other operating systems. Hope this helps.