I recently got my computer completely cleaned. COMPLETELY. Everything was deleted, and I started from scratch. I went on youtube to listen to some music and it wasn't working. I tried searching for the volume settings, and couldn't change anything. Also, the little area on the right corner of the task bar (If you keep it on the bottom of the screen) doesn't appear to have the speaker icon to adjust the volume.

What can I do to get my volume to work? Is there anything I can download or am I out of luck?