Is there anyone who can show me how this works. I m just wondering if anyone knows how to help me get the sound back on my computer.

welcome to the forum!

this site does assist with things like that. for starters, can you tell us what sort of computer you have, especially which operating system it uses? also, was the sound working for awhile and stopped for no reason? did you make any software or hardware changes right before the sound stopped?

also, verify that the speakers are plugged in

Yup start by answering some of thoose questions and that will help us get started in fixing your problem.

Thanks,
Jim