If you're using Windows 10, you might have to manually go into your privacy settings to allow access to external cameras. To do that, please follow the steps below:
- Click the Windows icon on the bottom left (the 'Start' menu)
- Click the gear icon to go into Windows Settings
- Click 'Privacy'
- Under 'App permissions', click 'Camera'
- Here you'll find a list of all the apps that have access to your camera. Make sure that IPEVO Visualizer is switched to On.