Go to Control Panel/Hardware and Sound and click on "Sound" than it will show the number of sound cards in the main Playback tab. If the drivers for your sound card is not installed than it will be showing only RealTek High Definition Audio selected and ticked green. Let us know about the exact model of your Audigy Sound Card which can be found on the backside of the card on a white sticker. There are several models on Creative Webiste but not all of them are listed there and sometimes it's hard to find the exact driver for the card due to many OEM models of cards that comes with Branded PC's like IBM, Compaq, HP etc. So if your card is a OEM version than it's driver might be not there on the official website.