Windows 10: Restarting computer causes USB mic to become muffled

I recently got a new laptop. It's a refurbished laptop from dell. I am using a USB microphone that worked absolutely fine with my last laptop.With the new laptop the mic is muffled and sounds worse then the average headset mic. The only way I have found to fix the issue is to remove the USB composite device in device manager then restart the computer. This will fix the issue and the mic then sounds great just as it did with my last laptop.If I restart the computer again after that point or remove then reinsert the mic from its USB slot it goes muffled again with the only fix being the above so

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my mic is muffled UGH

Ok so I been playing on my PC right,running on windows 8.1 for certain reasons,and anyway my mic is VERY VERY muffled...and I mean it sonds as if im at the bottom of the mariana trench,i have it all the way up and boosted to 30,also I am using 1 pair of
headphones as actual headphones and then using a gaming headset with a built in mic as my mic,if anyone has anyway to boost my sound more or make it so im not muffled and can actually play some SCP and talk,i would be very thankful

 

USB Mic Problems.

The next step is what I suggested originally. Try it in a friend's PC or take it to Best Buy and ask them to try it one of their PC's. Have to confirm the mic is working OK.

 

N93 mic sounds muffled

When I record sound on my N93 the result sounds "muffled." You can hear the effect on the videos here:

http://www.alpha.bambuser.com/channel/johnleeke/video/4333?page=

and here:

http://www.alpha.bambuser.com/channel/johnleeke/video/3664?page=

Is this the standard sound of the N93, or is there something wrong here.

I thought the mic might be blocked, and found two holes that must be the mics, one with an "L" the other with an "R" beside it. The holes seem to be clean with no blockage.

Perhaps the mic or electronics are not picking up the higher frequencies, giving a low muffled sound.

Please advise on how to get a "bright" higher quality sound out of my N93.

Thanks for your help.

John