Mailbag: How to revert to older versions of the .NET Framework 4 family

Question: I recently installed the .NET Framework 4.6.1 but ran into a compatibility issue with an application that I’m trying to use. How do I revert back to the .NET Framework 4.5 on my PC? Answer: All versions of the .NET Framework 4 family are in-place upgrades, which means that they replace previous versions of…

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A couple of notes about .NET Framework 4.6 setup behaviors

I have gotten a couple of questions from customers recently about the behavior of .NET Framework 4.6 setup, so I wanted to post some additional details about how it behaves behind the scenes. The .NET Framework 4.6 is an in-place upgrade for all of the following versions of the .NET Framework: .NET Framework 4 .NET…

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Blog post about silent repair and uninstall has been updated to include information about the .NET Framework 4.5.2

I was recently asked a question about how to silently repair and uninstall the .NET Framework 4.5.2.  I couldn’t find these command lines documented anywhere else, so I updated my blog post that contains silent repair and uninstall command line switches for all versions of the .NET Framework to include information about the .NET Framework…

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.NET Framework setup verification tool, cleanup tool and detection sample code now support .NET Framework 4.5.2

I have posted updated versions of the .NET Framework setup verification tool, the .NET Framework cleanup tool, and the sample code to detect .NET Framework install states that support detecting, verifying, and cleaning up the .NET Framework 4.5.2. You can find more information about how to download and use these tools at the following locations:…

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.NET Framework Repair Tool now supports diagnosing and repairing .NET Framework 4.5 and 4.5.1 setup issues

The .NET Framework setup team has released an updated version of the .NET Framework Repair Tool that adds support for diagnosing and repairing issues with .NET Framework 4.5 and 4.5.1.  This repair tool can identify and fix issues with the installation of MSI-based versions of the .NET Framework, but it cannot fix issues related to…

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Blog post about silent repair and uninstall has been updated to include information about the .NET Framework 4.5 and 4.5.1

I was recently asked a question about how to silently repair and uninstall the .NET Framework 4.5 and .NET Framework 4.5.1.  I couldn’t find these command lines documented anywhere else, so I updated my blog post that contains silent repair and uninstall command line switches for all versions of the .NET Framework to include information…

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Links to deployment guides for all versions of the .NET Framework

Recently, I was looking for links to some of the deployment guides for previous versions of the .NET Framework. After digging through search engine results and my blog archives to find them, I decided it would be easier to create one blog post with links to the deployment guides for all versions of the .NET…

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.NET Framework setup verification tool and cleanup tool now support .NET Framework 4.5.1

I have posted updated versions of the .NET Framework setup verification tool and the .NET Framework cleanup tool that support verifying and cleaning up the .NET Framework 4.5.1. You can find more information about how to download and use these tools at the following locations: .NET Framework setup verification tool user’s guide – http://blogs.msdn.com/b/astebner/archive/2008/10/13/8999004.aspx .NET…

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Updated sample .NET Framework detection code that works with the .NET Framework 4.5 and 4.5.1

Someone recently asked me about the availability of an updated version of my sample .NET Framework detection code that supports the .NET Framework 4.5.  I could’ve sworn I had already updated that sample code to detect the .NET Framework 4.5, but when I looked back in my archive, it turns out I only updated the…

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Mailbag: Does my application need to install the .NET Framework 4 on Windows 8 or Windows Server 2012?

Question: I have an application that requires the .NET Framework 4. The application supports running on Windows 8 and Windows Server 2012, which both include the .NET Framework 4.5 as a part of the operating system. Does my application installer still need to install the .NET Framework 4 on these operating systems even though the…

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