Recently i puted windows 7 at my pc but my realtec sound driver isnt working cause its old enough..Windows downloaded automatically a newer version of realtec but nothing happened..
if i have to give more details about my pc just let me know..
Unimodem full-duplex refers to your modem for dial-up connections. The high definition audio is your Realtek driver area.
Go here to download the Realtek High Definition Audio Codecs and install them. It will ask for a system restart after the install is finished then you'll see an amber or orange speaker icon in the system tray after the restart. Click on it to open up the Realtek configuration window and test your speakers from there.