How to identify annoying notification sounds

I was getting random Device Connect and Device Disconnect sounds and no notifications or messages as to why. My USB printer was connected but turned off so the only other connected devices were my monitor, speakers, keyboard (PS/2) and USB mouse.

Disabling/enabling options did nothing to stop the sounds. I turned off all Notifications & actions, AutoPlay and the USB "Notify me if there are issues connecting to USB devices" option and my computer still made the Device Connect and Device Disconnect sounds.

After playing with it for a while I noticed that the random sound occurred when moving my USB mouse but the sound did not happen every time I moved the mouse. I found that by just moving the mouse around I could make the Windows Device Connect and Disconnect sounds play and even several times in a row by moving the mouse around quickly or erratically.

The USB mouse was working correctly other than not being able to wake the computer from sleep even though it was set to do so in Device Manager. I switched it out for another Dell 5 button mouse and have not heard the random sounds since then (other than when I actually connect or disconnect a device). The replacement mouse also wakes the computer from sleep mode.

I found several posts where the random sounds were caused by a USB device. Either a USB cable, a USB mouse or a USB3 hub. I suspect for most people who are getting these random connect and disconnect sounds it is because of a USB device but not always, see this device connect/disconnect thread. I would start with disconnecting or replacing your USB devices, including built-in memory card readers, one at a time until the random sound stops, that device should be the culprit.

I know this is old thread, but I just upgraded to Windows 10 and have the same issue. I'm fairly sure the sound comes from plugging in a USB device for charging... though there's no sound when I unplug it. Windows 7 would do the same.

BUT, is there any way to look in logs for events that cause sound notifications? I looked in the Win10 event logger and saw nothing. I'd think there would be an app or way to see this. I changed a variable in setup somewhere that's supposed to show a notifications banner (or something) for 15 seconds instead of 5 seconds, but nothing pops up. I'm not very sharp with software so have to wade my way through setups...

I'm happy with the upgrade, which I did instead of a clean install, which I did on a different laptop - I didn't like the "tile format" and this upgrade made the screen format similar to Win7 with all icons are on a desktop with the taskbar at the bottom and notification bar at right side. I'll look at spare laptop later to see how to change the theme.