Excerpt as found at https://docs.microsoft.com/en-us/dotnet/framework/migration-guide/how-to-determine-which-versions-are-installed

Find newer .NET Framework versions (4.5 and later)

Find .NET Framework versions 4.5 and later in the registry:


  1. From the Start menu, choose Run, enter regedit, and then select OK.

    You must have administrative credentials to run regedit.

  2. In the Registry Editor, open the following subkey: HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\NET Framework Setup\NDP\v4\Full. If the Full subkey isn't present, then you don't have the .NET Framework 4.5 or later installed.

     Note

    The NET Framework Setup folder in the registry does not begin with a period.

  3. Check for a DWORD entry named Release. If it exists, then you have .NET Framework 4.5 or later versions installed. Its value is a release key that corresponds to a particular version of the .NET Framework. In the following figure, for example, the value of the Release entry is 378389, which is the release key for .NET Framework 4.5.

    Registry entry for the .NET Framework 4.5

The following table lists the minimum value of the Release entry for each .NET Framework version. You can use these values as follows:

 Important

The following table lists the keys of released versions of the .NET Framework only. It doesn't list the keys of preview or pre-release versions.



.NET Framework versionValue of the Release DWORD
.NET Framework 4.5378389
.NET Framework 4.5.1378675
.NET Framework 4.5.2379893
.NET Framework 4.6393295
.NET Framework 4.6.1394254
.NET Framework 4.6.2394802
.NET Framework 4.7460798
.NET Framework 4.7.1461308
.NET Framework 4.7.2461808


For a complete table of release keys for the .NET Framework for specific Windows operating system versions, see .NET Framework release keys and Windows operating system versions.


The AGRIS install will check to see if the required version of .NET Framework is installed and automatically install it if not found.

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