Step 1Click the “Start” button to open the Start menu.
Step 2Type “device” into the Start menu’s search field and click “Device Manager” in the search results to open the Device Manager.
Step 3Double-click “Imaging Devices” to reveal a list of your installed cameras.
Step 4Right-click the entry for your webcam to open a pop-up menu.
Step 5Click “Disable” to disable the built-in webcam.