The device appears as "USB Audio Device" — not "Polycom C100s." No drivers install. No software utility launches. You test it. The microphone picks up a faint, robotic buzz. The speaker works, but only in mono, and at a volume that whispers secrets rather than projects authority. The beautiful noise-canceling array? Dead. The hardware buttons (volume up/down, mute, call answer/hang up)? Useless—ghosts of functions past.

Polycom Communicator C100S Go to product viewer dialog for this item.

No. Polycom (now Poly) has not released and does not support a driver for this device on any operating system newer than Windows 7.

This occurs when the legacy device sample rates conflict with Windows 10's high-definition default mixing rates.

. Because HP Poly (formerly Polycom) never compiled an architecture-compliant driver for newer operating systems, connecting the speakerphone directly to a modern PC typically results in a yellow exclamation mark in your Device Manager. However, because the unit relies on standard USB audio protocols, you can bypass this limitation using built-in Windows compatibility configurations, generic audio drivers, or specialized deployment software.

Click and navigate to the directory where the legacy Polycom application files were extracted (typically found inside C:\Program Files (x86)\Polycom\Polycom Communicator\ ).

Follow these steps to use your Polycom C100S as a standard USB speaker and microphone in Windows 10.

Right-click the in the bottom-right corner of your Windows taskbar and select Sound settings .