Windows 7: Realtek 8100c problem in windows 7

I recently uploaded windows 7 ultimate on my pc but now it says no sound device detected and i do not have the cd for the soundcard anymore what can i do need help please

The easy way would be goto device manager (right click my computer click properties click device manager) locate soundcard and click update driver, then windows will download and install generic driver for you or to be thorough go to the website of your soundcards manufacturer and get latest drivers for your soundcard model

http://www.realtek.com.tw/downloads/...130/RTL8139B(L)