Which .NET Framework versions are installed

Users can install and run multiple versions of the .NET Framework on their computers. When you develop or deploy your app, you might need to know which .NET Framework versions are installed on the user’s computer. Note that the .NET Framework consists of two main components, which are versioned separately.

• A set of assemblies, which are collections of types and resources that provide the functionality for your apps. The .NET Framework and assemblies share the same version number.

• The common language runtime (CLR), which manages and executes your app’s code. The CLR is identified by its own version number (see Versions and Dependencies).

To find .NET Framework versions by viewing the registry (.NET Framework 1-4)

 

• On the Start menu, choose Run.
• In the Open box, enter regedit.exe.

  You must have administrative credentials to run regedit.exe.

• In the Registry Editor, open the following subkey:

  HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\NET Framework Setup\NDP

  The installed versions are listed under the NDP subkey. The version number is stored in the Version entry. For the .NET Framework 4 the Version entry is under the Client or Full subkey (under NDP), or under both subkeys.

To find .NET Framework versions by viewing the registry (.NET Framework 4.5 and later)

 

• On the Start menu, choose Run.

• In the Open box, enter regedit.exe.

  You must have administrative credentials to run regedit.exe.

• In the Registry Editor, open the following subkey:

  HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\NET Framework Setup\NDP\v4\Full

  Note that the path to the Full subkey includes the subkey Net Framework rather than .NET Framework.

Check for a DWORD value named Release. The existence of the Release DWORD indicates that the .NET Framework 4.5 or newer has been installed on that computer.

The value of the Release DWORD indicates which version of the .NET Framework is installed.

Value of the Release DWORD	Version
378389	.NET Framework 4.5
378675	.NET Framework 4.5.1 installed with Windows 8.1 or Windows Server 2012 R2
378758	.NET Framework 4.5.1 installed on Windows 8, Windows 7 SP1, or Windows Vista SP2
379893	.NET Framework 4.5.2
On Windows 10 systems only: 393295 On all other OS versions: 393297	.NET Framework 4.6
On Windows 10 November Update systems only: 394254 On all other OS versions: 394271	.NET Framework 4.6.1
On Windows 10 Anniversary Update and Windows Server 2016: 394802 On all other OS versions: 394806	.NET Framework 4.6.2
On Windows 10 Creators Update only: 460798 On all other OS versions: 460805	.NET Framework 4.7
On Windows 10 Fall Creators Update only: 461308 On all other OS versions: 461310	.NET Framework 4.7.1
On Windows 10 April 2018 Update only: 461808 On all other OS versions, including Windows 10 October 2018 Update: 461814	.NET Framework 4.7.2

RTFM