Internet Explorer 8 is the latest version of the familiar web browser you are most comfortable using, helping you get everything you want from the web faster, easier, more privately and securely than ever before.

• Faster Internet Explorer 8 is more responsive with new pages and tabs, opening up fast and reliably. You can now get to the information you care about most, in fewer steps; one click access to your webmail, favorite news sites or other online services.
• Easier Reduce the steps to accomplish many common tasks, and automate your access to real time information updates. You can keep track of your favorite sports team, news, weather with a single click.
• More Private Helps protect your privacy and confidential information where ever you go on the web.
• More Secure Helps protect and stop malicious software from reaching your PC, and makes it easier to detect when a website is an imposter.

Support for IE8 can be received by visiting the Internet Explorer Newsgroup to discuss issues, or by contacting Customer Support Services.

If you use a screen reader, please consult the Internet Explorer 8 release notes before downloading.

Windows Internet Explorer 9 delivers web sites and applications that look and perform like native PC applications through the power of Windows.

• Fast: Internet Explorer 9 is all-around fast. Designed to take full advantage of your PC’s hardware through Windows, Internet Explorer 9 delivers graphically rich and immersive experiences that are as fast and responsive as native applications installed on your PC.
• Clean: Internet Explorer puts the focus on the Web sites you love with a clean look and increased viewing area that makes your Web sites shine. Intuitive and seamless integration with Windows 7 provides one-click access to Web applications pinned directly to your Taskbar.
• Trusted: Internet Explorer is the trusted way to the Web because it has a robust set of built-in security, privacy and reliability technologies that keep you safer and your browsing experience uninterrupted.
• Interoperable: Support for HTML5 and modern Web standards architected to take advantage of the GPU means that the same mark-up not only works across the Web, but runs faster and delivers a richer experience through Windows and Internet Explorer 9.

The Microsoft Windows Malicious Software Removal Tool checks Windows Vista, Windows 7, Windows XP, Windows 2000, and Windows Server 2003 computers for and helps remove infections by specific, prevalent malicious software—including Blaster, Sasser, and Mydoom. When the detection and removal process is complete, the tool displays a report describing the outcome, including which, if any, malicious software was detected and removed. The tool creates a log file named mrt.log in the %WINDIR%\debug folder.

To download the x64 version of Malicious Software Removal Tool, click here.

This tool is not a replacement for an anti-virus product. To help protect your computer, you should use an anti-virus product.

Microsoft will release an updated version of this tool on the second Tuesday of each month. New versions will be made available through this web page, Windows Update, and the Malicious Software Removal Tool Web site on Microsoft.com.

To have the newest versions automatically delivered and installed as soon as they are released, set the Automatic Updates feature to Automatic. The version of this tool delivered by Windows Update runs on your computer once a month, in the background. If an infection is found, the tool will display a status report the next time you start your computer. If you would like to run this tool more than once a month, run the version that is available from this Web page or use the version on the Malicious Software Removal Tool Web site.

Please review KB890830 for the list of malicious software that the current version of the tool is capable of removing as well as usage instructions. Also, please be aware that this tool reports anonymous information back to Microsoft in the event that an infection is found or an error is encountered. The above KB article contains information on how to disable this functionality and what specific information is sent to Microsoft.

It is strongly recommended that you review KB891716 before you consider deploying this tool in an enterprise environment.

The user must be an administrator to run this tool. This tool will not run on any version of Windows 98, Windows ME, or Windows NT 4.0.

Note that this download is now a multi-lingual tool. For all supported languages, the same tool will show the correct language depending on the language of the operating system.

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.

Windows Internet Explorer 9 has a streamlined look and many new features that speed up your web browsing experience. We give you more screen space to see your favorite sites, more than any other browser. The new tab page intelligently displays you most visited sites. A combined search and address bar means you can search and navigate from one place. With Pinned Sites, you can get to your favorite sites directly from the Windows 7 taskbar—without having to open Internet Explorer first. All together, making Internet Explorer the best way to browse your favorite sites.

Windows Internet Explorer 9 has a streamlined look and many new features that speed up your web browsing experience. We give you more screen space to see your favorite sites, more than any other browser. The new tab page intelligently displays you most visited sites. A combined search and address bar means you can search and navigate from one place. With Pinned Sites, you can get to your favorite sites directly from the Windows 7 taskbar—without having to open Internet Explorer first. All together, making Internet Explorer the best way to browse your favorite sites.