either wait until the application has a large user base and its reputation will be adjusted by the Smart Screen.In newer Windows version you see the text in the popup above and below. Running this app might put your PC at risk.”, with the two buttons: “Run anyway” and “Don’t run”. Otherwise, for some time, until your application builds trust, the users will see a warning like “Windows Defender Smartscreen prevented an unrecognized app from starting. Microsoft affirms that an Extended Validation (EV) Code Signing Certificate allows to skip this period of trust building.Īccording to Microsoft, extended validation certificates allow the developer to immediately establish reputation with SmartScreen. If you have a standard code signing certificate, some time will be needed for your application to build trust. Since you haven’t published your application as yet (and therefore the reputation hasn’t been established as yet), the Smart Screen will continue to flag the application. Microsoft establishes the reputation of an executable based upon the number of installations world wide of the same application.

Applications that are signed with a standard code signing certificates need to have a positive reputation in order to pass the Smart Screen filter.

Defender smartscreen