I was getting feedback through my speakers so I attempted to change the settings on the microphone and somehow removed the microphone altogether. Now, when I look at the device manager, it says that I do not have a microphone installed. I have an Inspiron 15 5547.
From the posts, it looks like I need to install a new driver. I went to the drivers page and attempted to install the Realtek Audio ALC3234 Driver but it failed because I already have that version of the driver.