While you wait for answers, we may have found some information which could help you.
Click here for Good Problem Poweraudio device drivers for Dell Latitude E6400?
My laptop is showing it is not connected to the network, but it is?
how to repair my blank screen?
how to fix dell inspiron 1545 date and time?
How to fix dell Inspiron 5040 laptop windows 7?
My Dell Inspirion Windows 10 laptop has no network socket?