RE: Inspiron 17 5748 does not recognize external microphone
Since posting the above, I have tried installing the Windows native audio drivers as suggested in another post, deleting the Realtek drivers as I went. After three iterations, I finally had the Windows native drivers installed, but had the same issue with the headset microphone. A few hours later, I discovered that the system had updated itself to Realtek drivers again. I tried the mic again, but had the same problem.
Any suggestions would be GREATLY appreciated. Growing problems with my hands make it painful to type any period of time, and I am trying to implement speech recognition so I can dictate longer documents and emails.