Windows 7 'click' sound
Press a button. "Click." Or actually more like an amplified "Ca-chunck-klunk." In Control Panel, which sound clip is it, so that it can be silenced?
Solution 1:
It is found under Sounds > Windows Explorer > "Start Navigation" sound
Kudos for HowToGeek for supplying this nice image
Solution 2:
Select the Start Navigation. Then the Sounds selection list shows Windows Navigation Start.wav. Drop down it, and select the top (None), and OK. After it, there will be no start navigation sound.