When Opening the Desktop There is Mysterious Background Sound

  martin1223 17:29 22 Jan 2015
Locked

On startup, there is a “thu-dum” that sounds like a warning. So far, I have no software or hardware issue. However, when I boot up to my desktop sometimes I get that "thu-dum" sound. Does anyone know what is causing it?

  Fruit Bat /\0/\ 19:54 22 Jan 2015

Have you check your system sounds settings?

  martin1223 00:49 07 Mar 2015

Sorry, I forgot to update. I discovered that Dell’s lousy Support Assist preinstalled diagnostic tool was slowing my desktop PC and interfering with the live connections on the internet, so I removed it. Now, my PC is faster and I get the live connections on the web. Thanks for your response…

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