Here is a video that might help you if you can’t get any sound on your computer. These are not so much a step by step of what to do but more of just a bunch of troubleshooting steps that you can try. One of these may solve your problem.
If you need help sorting your computer out then feel free to give me a call if you are in the Germantown, Memphis, Collierville or Bartlett area. I can come to your home and figure out why your PC is not working and I can get it working. Just call me at 901-830-4362.