Mic not working on my pc

Question

so i have this headphone with mic and suddenly it has stopped working at all. (it kinda didnt work well before, i had to plug it in certain way lik eplugging mic on the headphone first and than plug to pc and yes my mic comes out).   I tried with
my other computer and works perfectly fine.
i use realtek.  the computer recognize the mic but no sound would go through.  like in the sound option i can c mic and same as the realtek config thingy too.
i tried many ways but wouldnt just find a way it to work.
using windows 8.1.
oh and found if i plug it as usb the mic works but cant hear sounds... (my head phone has both usb and 3.5mm? jacks)  but if i use usb it makes constant high pitch noise.
my headphone is connected to front side and I also have speaker connected to rear side of my pc.
dont know what other information i need to put in and thnx in advance
PS i did not mean to post this on windows server> group policy... it did automatically... how do i move my post?

Answer 1

Open the Recording Audio troubleshooter by clicking the Start button ,
and then clicking Control Panel. In the search box, type troubleshooter,
and then click Troubleshooting. Under Hardware
and Sound, click Troubleshoot audio recording.‌  If
you're prompted for an administrator password or confirmation, type the password or provide confirmation.
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