How to disable that annoying PC speaker beep

I've had the pleasant experience more than once where I'm sitting in a meeting quietly using my computer (with my sound muted) and there will be a windows warning that pops up causing a "Beep" sound on my computer. The sound doesn't come from my speakers, but from the speaker on the motherboard itself.
Definitely annoying and I wonder why Microsoft didn't disable this sound as well when you hit mute, but here is how you do it:

1. Right-click on "Computer" or "My Computer" from the start menu and select "Manage"
2. From the left bar, find the "Device Manager" node and select it.
3. From the top menu bar, select "View" and then "Show hidden devices". This will cause a new node named "Non-Plug and Play Drivers" to be displayed in the main area.
4. Expand the new node "Non-Plug and Play Drivers"
5. Right-click on the node named "Beep" and select "Properties"
6. Select the "Driver" tab and change the Startup Type to be "Disabled"
7. Click OK.