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Software

Determining Which Versions Are Installed - .NET Framework

Versions 1-4¶

1. Within the Windows Registry, navigate to HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\NET Framework Setup\NDP. The installed versions are listed under the NDP subkey.

2. Each subkey under NDP will have a Version entry indicating the installed version. For .NET Framework 4, the Version entry is under the Client or Full subkey (or both).

3. For the v4\Full subkey, if the Release entry exists, then .NET Framework 4.5 or higher is installed. (See below.)

Versions 4.5 and Later¶

1. Within the Windows Registry, navigate to HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\NET Framework Setup\NDP\v4\Full

2. Look for a DWORD entry named Release, which indicates which version of the .NET Framework is installed, as follows.

Release DWORD	Version
378389	.NET Framework 4.5
378675	.NET Framework 4.5.1 installed with Windows 8.1
378758	.NET Framework 4.5.1 installed on Windows 8, Windows 7 SP1, or Windows Vista SP2