Use free tools like or SharpKeys to remap the multimedia keys, but the C100s sends non-standard HID commands, so success is limited. Most users ignore the buttons and use on-screen controls.
For users with persistent failures, the C100s’s chipset (a standard C-Media CM108) can be manually driver-forced. Polycom Communicator C100s Windows 10 Driver
is challenging because the device has reached its end-of-life (EOL) status. Driver Compatibility and Support Status Use free tools like or SharpKeys to remap