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Microsoft® Windows® Malicious Software Removal Tool (KB890830) x64

This tool checks your computer for infection by specific, prevalent malicious software (including Blaster, Sasser, and Mydoom) and helps to remove the infection if it is found. Microsoft will release an updated version of this tool on the second Tuesday of each month.

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A download manager is recommended for downloading multiple files.

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Manage all your internet downloads with this easy-to-use manager.It features a simple interface with many customizable options:
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  • Suspend active downloads and resume downloads that have failed

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Generally, a download manager enables downloading of large files or multiples files in one session.Many web browsers, such as Internet Explorer 9, include a download manager.Stand-alone download managers also are available, including the Microsoft Download Manager.

if you do not have a download manager installed, and still want to download the file(s) you've chosen, please note:

  • You may not be able to download multiple files at the same time.In this case, you will have to download the files individually.(You would have the opportunity to download individual files on the "Thank you for downloading" page after completing your download.)
  • Files larger than 1 GB may take much longer to download and might not download correctly.
  • You might not be able to pause the active downloads or resume downloads that have failed.

The Microsoft Download Manager solves these potential problems.It gives you the ability to download multiple files at one time and download large files quickly and reliably.It also allows you to suspend active downloads and resume downloads that have failed.

Microsoft Download Manager is free and available for download now.

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.NET Framework 4.5 is a highly compatible, in-place update to .NET Framework 4.
  • Version:

    4.5

    File Name:

    dotNetFx45_Full_setup.exe

    Date Published:

    10/09/2012

    File Size:

    982 KB

      The .NET Framework 4.5 is a highly compatible, in-place update to the .NET Framework 4. By using the .NET Framework 4.5 together with the C#, Visual Basic, or F# programming language, you can write Windows apps. The .NET Framework 4.5 includes significant language and framework enhancements for C#, Visual Basic, and F# (so that you can more easily write asynchronous code), the blending of control flow in synchronous code, a responsive UI, and web app scalability . The .NET Framework 4.5 adds substantial improvements to other functional areas such as ASP.NET, Managed Extensibility Framework, Windows Communication Foundation, Windows Workflow Foundation, and Windows Identity Foundation. The .NET Framework 4.5 delivers better performance, reliability, and security.

      For more information about these and other features of the .NET Framework 4.5, see the .NET Framework Developer Center website.

      Note: The .NET Framework 4.5 redistributable was updated on 10/9/2012 to correct an issue related to an improper timestamp on a digital certificate which causes the digital signature on files produced and signed by Microsoft to expire prematurely. We recommend customers that previously installed the .NET 4.5 redistributable package dated 8/16/2012 install this updated .NET 4.5 redistributable package. More information about the issue can be found Microsoft Security Advisory 2749655.
  • Supported Operating Systems:

    Windows 7 Service Pack 1, Windows Server 2008 R2 SP1, Windows Server 2008 Service Pack 2, Windows Vista Service Pack 2

        • Windows Vista SP2 (x86 and x64)
        • Windows 7 SP1 (x86 and x64)
        • Windows Server 2008 R2 SP1 (x64)
        • Windows Server 2008 SP2 (x86 and x64)
      • Hardware Requirements:
        • 1 GHz or faster processor
        • 512 MB of RAM
        • 850 MB of available hard disk space (x86)
        • 2 GB hard drive (x64)
    • Note: Windows 8 and Windows Server 2012 include the .NET Framework 4.5. Therefore, you don't have to install this software on those operating systems.   

      • On this page, choose the Download button.
        • To install the software now, choose the Run button.
        • To install the software later, choose the Save button. (When you install, the computer must be connected to the Internet.)
    • This version of the .NET Framework runs side-by-side with the .NET Framework 3.5 and earlier versions, but performs an in-place update for the .NET Framework 4.

      For important information about this release, see the .NET Framework 4.5 Readme File.

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