I want to install sound device

hi

if you can please tell us that what is the name of the sound device that u are using ......
if donot know that then i can suggest that

go to run and in run type in devmgmt.msc
and then u will get the window named device manager ,,,,in device manager click on the plus sign on sound and video ....now their u can find the name of the device that you are using and then u can install the driver from the net ,,,,or you can search it on net