PCI Serial Port Driver issues

If you're referring to the PCI Serial Port and PCI Simple Communications Controller entries in the Device Manager, you can ignore them.

Those entries also have nothing to do with your microphone issues.

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First of all, no one [other than you] has any idea what hardware you are running nor what operating system you are using. You need to post your exact system specs.

 

There are a lot of 64bit operating systems; linux, windows, uniux, what?
Next if this is a dell, hp or other big box system, post the exact brand, model# and service tag# Without this info, no one can really help you. We need to know what operating system and what hardware you are running.
On the home page, you will see help. Click that then click valuable links. You will see the TSG utility. If you run that, it will give most of your hardware. You can copy/paste the output here. This is the easiest way to get the info.

 

Download and save the TSG System Information Utility (SysInfo.exe) file.
After it's been downloaded and saved, double-click it to run it.
Information about your computer will appear.
Return here to your thread, then copy-and-paste the ENTIRE text here.

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