Overview
This is the most current release of Windows Defender. If Windows Defender informed you that an update is available, you are running an older version. We encourage you to upgrade to this version. You can check your version of Windows Defender by clicking the down arrow next to the help icon and choosing ‘About Windows Defender’.
This release includes enhanced features that reflect ongoing input from customers, as well as Microsoft’s growing understanding of the malicious software landscape.
To download the x64 version of Windows Defender, click here.
Specific features of Windows Defender include:
- 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. Please refer to the Windows Defender support policy for more information.
- 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. For more information, please visit The Windows Genuine Advantage.
Important Notes
- Windows Defender no longer supports Windows 2000 as it went
out of mainstream support in June 2005. Please refer to the support
lifecycle website for more information.
- Access to Newsgroups:
In addition to phone support we also have newsgroups to help get your questions answered.
For Additional Information:
Please see the Release Notes to learn more about known issues with Windows Defender. Top of page
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