The Windows SmartScreen must be turned off.

From Windows 8 Security Technical Implementation Guide

Associated with IA controls: ECSC-1

SV-48337r1_rule The Windows SmartScreen must be turned off.

Vulnerability discussion

Some features may send system information to the vendor. Turning off this capability will prevent potentially sensitive information from being sent outside the enterprise.

Check content

Fix text

Configure the policy value for Computer Configuration -> Administrative Templates -> Windows Components -> File Explorer -> "Configure Windows SmartScreen" to "Enabled" with "Turn off SmartScreen" selected.

Pro Tips

Lavender hyperlinks in small type off to the right (of CSS class id, if you view the page source) point to globally unique URIs for each document and item. Copy the link location and paste anywhere you need to talk unambiguously about these things.

You can obtain data about documents and items in other formats. Simply provide an HTTP header Accept: text/turtle or Accept: application/rdf+xml.