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    Describes how to troubleshoot error code 0x80070643 or error code 0x643 when updates are installed for the .NET Framework by using Windows Update or Microsoft Update or when you update Microsoft Security Essentials.
    Resolves a vulnerability in the Microsoft .NET Framework that could allow remote code execution on a client system if a user views a specially crafted webpage by using a web browser that can run XAML Browser Applications (XBAPs).
    Describes the .NET Framework Repair Tool and how to obtain it.
    Describes a problem in which you receive an 0x800F0906, 0x800F081F, or 0x800F0907 error code when you try to install the .NET Framework 3.5 in Windows 8.1, Windows Server 2012 R2, Windows 8, or Windows Server 2012. Provides methods to resolve this problem.
    .NET Framework 4.5 is enabled by default in Windows 8. Windows 8 does not include .NET 3.5 by default, but the files for .NET 3.5 are available on the Windows 8 installation media as an optional feature. In this tutorial the user can know how to enable...
    Learn how to install earlier versions of .NET Framework on Windows 8, including version 3.5
    Describes an issue where the.NET Framework 1.1 SP1 Update cannot install on computers that are running Windows XP. The issue occurs when you try to install the update by using Windows Update. A resolution is provided.
    Lists the bugs that are fixed in the .NET Framework 1.1 Service Pack 1 (SP1).
    Describes an update that addresses some stability, reliability, compatibility, and performance issues in the .NET Framework 4.5 in Windows 7 SP1, Windows Server 2008 R2 SP1, Windows Server 2008 SP2, and Windows Vista SP2

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