Microsoft Windows Defender

Windows Defender beta 2 is a free program that helps you stay productive by protecting your computer against pop-ups, slow performance and security threats caused by spyware and other potentially unwanted software.

The worldwide SpyNet community plays a key role in determining which suspicious programs are classified as spyware. Microsoft researchers quickly develop methods to counteract these threats, which are automatically downloaded to your PC, so you stay up-to-date.

Specific features of Windows Defender beta 2 include a redesigned and simplified user interface, improved detection and removal, protection for all users, support for 64-bit platforms, accessibility, and localization

This product is free of charge for licensed Windows customers. Users of 64-bit platforms should use WindowsDefenderX64.msi (7.9MB).