SmartScreen collects information about the program, including the program's file name, hash code and digital signature if available, and submits the information to a Microsoft server on the Internet (). It is a security software that intervenes if a site or application has been identified as malicious but also when Microsoft does not know anything about a particular program you try to run.
SmartScreen is a background service that monitors the execution of applications and the opening of sites on the system to block the execution of application or the loading of sites until the resources have been checked by the service. Microsoft's operating systems Windows 8 and Windows 10 include a security feature called Windows SmartScreen that is enabled by default.
