Windows Defender
Windows Defender 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.
A redesigned and simplified user interface - Incorporating feedback from our customers, the Windows Defender UI has been redesigned to make common tasks easier to accomplish with a warning system that adapts alert levels according to the severity of a threat so that it is less intrusive overall, but still ensures the user does not miss the most urgent alerts.
Improved detection and removal - Based on a new engine, Windows Defender is able to detect and remove more threats posed by spyware and other potentially unwanted software. Real Time Protection has also been enhanced to better monitor key points in the operating system for changes.
Protection for all users - Windows Defender can be run by all users on a computer with or without administrative privileges. This ensures that all users on a computer are protected by Windows Defender.
Support for 64-bit platforms and accessibility - Windows Defender supports accessibility and 64-bit platforms. Please be sure to use WindowsDefenderX64.msi for 64-bit platforms.
Delta definition updates - Windows Defender now downloads smaller delta definition updates when possible which reduces the time required to download and install definition updates. Customers can expect shorter download times when updating their definition updates.
Free Limited Support - As a part of our commitment to the security of our customers, Microsoft is offering two free support incidents relating to Windows Defender on Windows XP and Windows Server 2003. Examples of valid support scenarios are installation, configuration, definition update, detection and removal errors.
WGA enforcement - There are significant risks to running non-genuine Windows. Only genuine Windows customers can receive product downloads, Windows updates and special offers. Windows Defender will validate that your copy of Windows is genuine before installation. Furthermore, Windows Defender will only remove Severe threats for machines that are not genuine. Low, Medium and High threats will be detected, but not removed unless your copy of Windows is genuine.
Minimum system requirements for Windows Defender:
- Personal computer with an Intel Pentium 233-megahertz (MHz) or higher processor; Pentium III recommended.
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Operating system: Windows XP Service Pack 2 or later, or Windows Server 2003 Service Pack 1 or later.
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64 megabytes (MB) of RAM (minimum); 128 MB RAM (recommended).
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20 MB of available hard disk space.
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Microsoft Internet Explorer 6.0 or later.
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Internet access with at least a 28.8 Kbps connection.
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Windows Installer version 3.1 or higher.
Note: Windows Vista users must pass Microsoft Genuine validation requirements to enable certain product features and to obtain non-security updates and product support from Microsoft. For more information, go to the Windows Genuine Advantage FAQ.
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