A. Microsoft Edge, the browser created for its Windows 10 operating system, has a tool called the Windows Defender SmartScreen designed to thwart malicious websites, apps, downloads and other files that target PCs. The SmartScreen is optional, and you can set the level of protection you wish to have in the Windows Defender Security Center — like outright blocking potentially intrusive software, or opting for a warning that a site may possibly have malicious intentions.
To get there in the latest version of Windows 10 (the Creators Update), go to the Start menu and open the Settings icon; you can also press the Windows and I keys on the keyboard to get there without the mouse. At the bottom of the Settings window, select Update & Security. On the next screen, choose Windows Defender and then Open Windows Defender Security Center.
In the Windows Defender Security Center window, select App & Browser Control. In the SmartScreen for Microsoft Edge section, make your selection: Block, Warn or Off. (The warning is typically the default setting.)
Earlier versions of Windows have a similar SmartScreen filter for the Internet Explorer browser that warns…