Windows’ SmartScreen filter automatically scans application files, downloads, and websites; it blocks known-dangerous content and warns you prior unknown applications being ran. This feature can be disabled, if you choose to do so.
It is recommended that you leave SmartScreen enabled as it provides an additional layer of security that will help protect your PC, regardless of whether or not you are using an antivirus. Even if SmartScreen automatically blocks an unknown application, and you know it is safe, you can click through the warnings and run the application anyways.
How to Disable SmartScreen Filter for Windows 10
For the Windows 10 Creators Update, the SmartScreen settings are now located in the Windows Defender Security Center interface. To begin, first Launch Windows Defender Security Center via a shortcut in your Start Menu.
Click the “App & Browser Control” icon in Windows Defender’s sidebar to find these settings. There are three Windows SmartScreen filters; Select “Block” to block unrecognized applications, “Warn” to receive a warning that you can click through, or “Off” to disable Windows SmartScreen.
Even if “Warn” is enabled, SmartScreen will continue to block known-dangerous content, for unrecognized applications, however, it will just provide you with a warning. If you disable SmartScreen entirely, it will not be able to block known-dangerous files at all.
SmartScreen for Microsoft Edge is built into the Microsoft Edge browser, it will block malicious websites and downloads, but only if you use Microsoft Edge.
SmartScreen for Windows Store Apps is used when you download applications from the Windows Store, it will warn you before apps download dangerous content.