Sometimes, the device requires higher power than some USB ports provide. Use a powered USB hub or a direct port on the computer.
While official drivers do not exist, some users have reported partial success using the device as a generic audio peripheral:
According to third-party driver sites, drivers from 2010 (version 7.0.6000.5) exist, which may be compatible with Windows 10 32/64-bit.
In the tab, right-click the Polycom device and select Set as Default Communication Device . Polycom Communicator C100s Windows 10 Driver
: As a legacy product, it has been discontinued and superseded by newer conferencing hardware. Windows 10 Functionality & Workarounds
| Issue | Solution | |-------|----------| | Device not detected | Try a different USB port or cable. Avoid USB 3.0 ports if issues persist. | | No sound / mic | Right-click speaker icon → → Playback tab → set C100s as Default Device . | | Echo during calls | Reduce speaker volume or enable acoustic echo cancellation in your softphone settings. | | Driver error in Device Manager | Uninstall device, scan for hardware changes, or run Windows Update. |
A: Modern speakerphones like the Poly Sync 20 offer plug-and-play compatibility with Windows 10 and 11, support both USB and Bluetooth, have better audio processing for modern conferencing platforms like Teams and Zoom, and are actively supported with firmware updates. Sometimes, the device requires higher power than some
To understand the fix, you must understand the hardware. The Polycom Communicator C100S was actually a co-developed product. Under the hood, the USB interface relies on technology licensed from (now HP Poly).
Follow the setup wizard to completion and restart your operating system.
A: No. The device was officially supported only up to Windows 7. Polycom (now HP) has confirmed that Windows 8, 8.1, and 10 are not supported. In the tab, right-click the Polycom device and
Check the box labeled and select Windows 7 from the dropdown menu. Check the box for "Run this program as an administrator" . Click Apply and execute the installer.
And the C100s became a zombie.
Check the box that says . Select Windows 7 from the drop-down menu.
To use your Polycom C100s on Windows 10, follow this sequence to ensure the operating system recognizes the audio channels and the physical buttons (mute, volume, call pick-up). Step 1: Use the Windows Compatibility Mode Solution