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Microsoft .NET Framework 4.5.1 coming to WSUS

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This post was authored by Vivek Mishra on behalf of the .NET Framework team.

Hi WSUS Admins,

The Microsoft .NET Framework 4.5.1 will be made available via Windows Server Update Services on 26 Nov 2013 and this blog highlights some of the key aspects.

The .NET Framework is a development platform for building apps for Windows, Windows Phone, Windows Server, and Windows Azure. The .NET Framework 4.5.1 is a highly compatible, in-place update to the .NET Framework 4 and 4.5. The .NET Framework 4.5.1 can be installed fresh on any supported platform or can be used to upgrade your previous .NET 4 or 4.5 installation. The .NET Framework 4.5.1 also works side by side with older Framework versions lower than .NET 4.0. Applications that are based on earlier versions of the Framework will continue to run on the version targeted by default, after .NET Framework 4.5.1 is installed.

You can learn more about .NET Framework 4.5.1 here.

Useful information about this release:

  1. The .NET Framework 4.5.1 and its corresponding language packs are being released for following supported platforms:

    Windows Vista SP2, Windows 7 SP1, Windows Server 2008 SP2, Windows Server 2008 R2 SP1, and Windows Server 2012.

  2. The .NET Framework 4.5.1 Language Packs will also be available via WSUS, both to support the upgrade of previous language packs for .NET Framework 4 or 4.5 and for computers, that either have the localized version of the base operating system or have one or more Multilingual User Interface (MUI) packs installed.

  3. On Windows 8.1, Windows RT 8.1 and Windows Server 2012 R2, .NET Framework 4.5.1 is available in-box, so you do not need to deploy or install the product separately.

  4. On Windows 8 and Windows RT, customers can get the .NET Framework 4.5.1 by upgrading their computer to Windows 8.1 and Windows RT 8.1 respectively. There is currently no .NET Framework 4.5.1 Windows Update offering for these 2 platforms.

  5. Enterprises, that have a specific need to block offering .NET Framework 4.5.1, on computers which can directly connect to Microsoft Update servers, can do so by deploying the blocker registry key as described in following Microsoft Knowledge Base:  

    KB2721187:  How to temporarily block the installation of the .NET Framework 4.5.1 and its corresponding language packs

Comments

  • Anonymous
    January 01, 2003
    Followup: On a second try on a clean install of Windows Server 2012 R2 without the .NET 4.5.1 update, the post-deployment configuration task still failed. The Hyper-V virtual machine in which I was installing WSUS had dynamic memory enabled; disabling dynamic memory allowed the task to proceed successfully.

    I cannot verify whether .NET 4.5.1 update is in conflict with installing WSUS or not, though I have found some online knowledge that indicates that it is.

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    January 01, 2003
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  • Anonymous
    January 01, 2003
    so what should I be looking for within cm12 software updates so that I can deploy this instead of using an application based deployment? Thanks in advance.

  • Anonymous
    January 01, 2003
    I have everything enabled except for tools and feature packs, is it in one of those classes?

  • Anonymous
    January 01, 2003
    @Curious WSUS Admin

    Here are three KB numbers associated with .NET Framework 4.5.1 on Windows Update:
    http://support.microsoft.com/kb/2858725 - Vista/Windows 7/Server 2008/Server 2008 R2 - MSI Product & Lang Packs
    http://support.microsoft.com/kb/2881468 - Server 2012 - MSU Product
    http://support.microsoft.com/kb/2858726 - Server 2012 - MSU Lang Packs

  • Anonymous
    January 01, 2003
    On a Windows Server 2012 R2 server, I was unable to complete the install of the WSUS role after installing the .NET 4.5.1 update. The server failed to finish the post-deployment configuration steps. (This was a clean installation of Windows Server 2012 R2 and WSUS was the first thing to be installed. But I made the mistake of running Windows Update first.)

  • Anonymous
    November 23, 2013
    Good to hear that.

  • Anonymous
    November 25, 2013
    The comment has been removed

  • Anonymous
    November 25, 2013
    .NET 4.5.1 on WU is being released for supported versions of Windows 7, i.e. Windows 7 SP1. This is similar to what you might have seen for IE11 here: support.microsoft.com/.../en-us

  • Anonymous
    February 13, 2014
    So, since this has been released... Where is the update for Windows Vista/7, Server 2008/2008R2? I see the Server 2012 update in WSUS, but all the other update appear to be missing...

  • Anonymous
    October 17, 2014
    Originally we declined any of the .NET framework installs/updates above 4.0 from our WSUS. Now we are ready to deploy .NET 4.5.1 but I cannot find the update from our Decline list. Is there a KB# or something I can search by to find it? Thanks.

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