I ran the installation but my PC does not detect the USB camera. I also tried to manually install the drivers as per the instructions in the Appendix. What's strange is Device Manager doesn't list the camera. Can you help, please?

On the root hub (the PC's built-in USB ports), try plugging the camera into a different port. If you are using a secondary or self-powered hub, plug the hub into a different port on the root hub. Otherwise, uninstall any other USB devices and reinstall the camera. When uninstalling the camera, also remove anything (especially a "USB composite device") listed under the "Other devices" category in Control Panel | System - Hardware - Device Manager.

If the camera is installed properly, a category called "Imaging devices" with the camera listed under it will appear in Device Manager.