Any website asking for $19.99 to "fix your C100s driver" is a scam. The only legitimate driver is free and built into Windows.
Here is a template for a helpful community or blog post regarding this issue: Subject: How to use Polycom Communicator C100s on Windows 10/11 The Quick Answer: Polycom C100s Polycom Communicator C100s Windows 10 Driver
If your C100s works today on Windows 10, cherish it. But plan for the future—the Polycom P15 is the true spiritual successor with active driver support. Any website asking for $19
It was strictly built for integration with Skype ; most of its specialized hardware buttons (like call answer/hang up) require this specific integration to function. Installation Options for Windows 10 But plan for the future—the Polycom P15 is
Under the tab, check "Run this program in compatibility mode for" and select Windows 7 .