Try holding the Fn key and pressing the volume control.  If that works, then your F keys are defaulting to working as F keys, not media keys.  If you wish to swap that behavior around, take a look at your Esc key.  If you see an icon indicating "F Lock" or "Fn Lock", then press Fn+Esc, and the default behaviors of your F keys will be reversed. Need further assistance? Use the "Get Help Now" option at the bottom right to chat with a Dell technician right away.  [IMAGE]    
I have a new laptop, Inspiron 15 5000 series and the shortcut keys (F1 - mute, F2 - lower volume., F3 - increase volume) do not work.  I have to go to the arrow in the lower right hand corner that shows the volume control to adjust the volume.  I have updated and install updated drivers and that did not work either.  I have a Windows 10 operating system. Please help! Thank you, Katy
Volume shortcut keys (F1, F2 and F3) do not work. I