Recover audio device!

Hello,
I was having trouble with my computer. My daughter somehow erased my entire audio device! I tried everything and this is what worked for me!
I went to:
-Start
-Control Panel
-Harware and Sound
-Device Manager
-High Definition Audio Controller
-And double clicked on High Def. Audio Controller
-A box pops open for High Def. Audio Controller Properties.
-You will see a few tabs and you want to click on the "Driver" tab
-You will see a "Update Driver" button, click on that.
-Click "let me pick from a list of device drivers on my computer"
-It will say Model and under it High Definition Audio controller
-Click Next
-And it will install

This was the only thing that actually worked for me. Hope it works for you too! Good luck!