Windows 11 PC is not recognizing any microphone input

[Windows 11]

I have a PC with an Intel i7-8700 CPU, which I recently updated to Windows 11 Pro. Prior to this update and now, I have been unable to get the PC to recognize any sound input from external devices. These are the hardware setups I have tried:Headset -> split aux cable for headphones and microphone -> headphone and microphone jacks on the front and back of my PCHeadset -> split aux cable -> USB adapter with aux jacks for headphone and microphone -> USB ports on PCOn the software side, I have attempted the following:Checking that microphone volume is sufficiently high in Sound Sett

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