WAV
file. WAV
file.Tip: you can't change the Windows 7 startup sound without utilities to "hack" at the registry.
Troubleshooting tip: if you can't hear event sounds (assuming speakers are turned on and volume turned up), type "volume" in the start menu and click "Adjust system volume". In the Volume Mixer, make sure that "System Sounds" is not turned all the way down / muted.