Ok, since no one's gonna be loving serious about this
Press Win+R and bring up the Run prompt.
Type devmgmt.msc.
You should be in the Device Management window.
Open up Sound, video, and game controllers (it's one of the areas in device management).
It should be something like IDT High Definition Audio CODEC, or Realtek something something, you get the idea.
If you want, you can stop here and Google the driver download for it.
Or, if you want to see if Windows Update has anything, or if you have a disc (I'm assuming you don't), right click it, and click Update Driver Software. Look for it automatically if you don't have install files, use the other one to look for files if you do.
That's it.
