I'm using lenovo 3000 n100 notebook.I installed realtek sound driver for sound device but still sound is not working.can anybudy give me any solution

Thanks

I don't know why you downloaded that, but here is the website for your sound card drivers.

Download ASUS P5L-MX SoundMax AD1986A Audio Driver 5.10.01.4151 Driver for Windows 2K / Windows XP - Softpedia (http://drivers.softpedia.com/get/SOUND-CARD/OTHER-SOUNDCARDS/ASUS-P5L-MX-SoundMax-AD1986A-Audio-Driver-510014151.shtml)