I tried plugging in a Logitech USB headset, and Windows7 x64 didn't recognize the device (unable to install driver). The solution was to copy
Currently the microphone is silent, which may be a hardware issue.
usb.inf
from C:\Windows\System32\DriverStore\FileRepository\usb.inf_amd64_neutral_e2b28ecac19a29af
to C:\Windows\Inf
(there was no existing usb.inf) and then re-insert the device.Currently the microphone is silent, which may be a hardware issue.