okay so i actually fixed it !    if you open "Realtek Audio Console" and go to "Device advanced settings" and where it says "Connector Retasking" and it says "Analog" because i have a single headphone jack which does both and you change it to "Headset (with microphone)"   unfortunately if you unplug the headset you have to do it all over again, and select it again... but yea its a rlly good solution!
I recently got a Razer Kraken 7.1 Headset and the sound is fine, but when I try to get the microphone to work it is not detected and only the internal microphone for my Alienware m15 is being detected no matter what. Ive restarted my computer, turned it on and back on, checked for the latest audio driver but nothing has changed the face the microphone is not detected. Ive even downloaded the MaxxAudioPro but I dont get how to use that, I know that many people have been having the same problems as me, but nothing works for me.   Im pretty sure my laptop can detect both since its a modern alienware, and I am using 3.5mm jack I assume since I cannot use the splitter because its a laptop.   Hope someone can help 
Razer Kraken 7.1 headset Microphone not working only internal microphone on 
laptop