The official website (avoid third-party CNET or Softonic mirrors – they bundle adware).
Get Your USB Endoscope Working with ViewPlayCap for Windows 10 Viewplaycap - Download For Windows 10
Plug the USB endoscope into an available USB port on your Windows 10 PC. Wait a moment for Windows to recognize the device. You should hear the "device connected" sound. The official website (avoid third-party CNET or Softonic