How to Turn Off Windows Defender SmartScreen Filter in Windows 10?br br Step 1: Click on the Search box, and then type 'settings,' and then click on 'settings' app to open it.br br Step 2: Click on 'Update & Security,' and then click on 'Windows Security.'br br Step 3: Click on 'App & Browser Control.'br br Step 4: Now Click on 'off' button under 'check apps and files,' 'SmartScreen for Microsoft Edge' and 'SmartScreen for Microsoft Store Apps.