If you trust the app, you can temporarily turn off the SmartScreen Filter to install and run it, then turn it back on in the Windows Security settings.

There are three—count ‘em, three —SmartScreen filters in Windows 10. The second one is in the Control Panel and stops you from installing potentially malicious desktop programs on your PC.

Newly-discovered methods have surfaced that get around Windows' built-in checks for malicious downloads.

SmartScreen is a similar feature introduced in Windows 8 that will protect Windows from potentially malicious content if Smart App Control is not enabled.

How to completely disable Windows Defender on Windows 10? There are several ways to disable Windows Defender on Windows 10, please see the detailed instructions below.

After all, this is a sophisticated hack. Windows recognized these to be safe, while hackers were able to turn off the prompt that would otherwise enable Windows SmartScreen to pop up.

Bypass Microsoft Defender SmartScreen prevented an unrecognised app from starting. Running this app might put your PC at risk warning in Windows.

Microsoft says its cross-company data sharing efforts mean Windows 10 Edge can block even the nastiest web attacks.