I believe my microphone drivers are gone, only manycam software shows up as an option (which I don't use) I have dell inspiron. I did a scan with Dell System Detect but nothing came up for microphone? Thanks in advance.
There won't be a separate microphone driver -- it's part of the audio drivers in most cases.
Also make sure some other application hasn't comandeered the microphone -- Skype in particular tends to do this, if you have it installed.