how to detect inbuilt mic ?

my laptop came with vista installed which i later upgraded to 7.since then its inbuilt mic(which worked just fine earlier) adjacent to the camera hasnt been working. i have the Ricoh camera driver installed but it does not include any driver for mic. i searched the specifications of my model vgn-fz35gn but no where is the model or maker listed on the internet.Even the device manager dosent show any hardware devices whose driver may be missing , so getting the hardware id is also not possible. what should i possibly do to let 7 know that theres an inbuilt mic in the laptop ?
(Theres one way - by using system recovery but it would bring back vista on c: and i dont wanna engage in that process)

your mike shouldn't need a driver - it should 'just work' - it won't show up in device manager either - that's normal

maybe you actually need to 'turn it on' and turn up the recording level. it's a bit of a lengthy process, but you only need to do it once.

control panel >> hardware and sound >> sound >> recording tab

you should see an entry for a microphone here

click on it >> configure >> levels >> turn it right up and turn on boost if you have that option

good luck and please let us know if it works, or if you need more help :)

nailed it , totally works!!! you're the man !!

i always knew it - nice to have it confirmed!

glad i could help :)