Sound problem in windows 7 home basic

Shivraj - Apr 6, 2015 at 08:14 AM
i am a student having Acer aspire 5755 model laptop windows 7 home basic OS, you tube videos are working properly but laptop's audio and video is running without sound, though sound driver is properly installed in my laptop, i am stuck with this problem, not able to listen a single song, anyone can here solve my problem? waiting for your responses....