Q: I’ve understood that Microsoft is going to end support for the 4, 4.5 and 4.51 versions of the .NET Framework in January 2016. How can I find the version of the .NET Framework that I’m running?
A: The easiest way to simply open File Explorer and then navigate to the Windows\Microsoft.NET\Framework directory and look for the different folders there that start with the letter v. In Figure 1 you can see the most current version of the .NET Framework is v4.0.30319.
You can also find your current version of the .NET Framework with PowerShell by examining the CLRVersion property of the $PSVersionTable object like you can see in the following example.
PS C:\Users\Michael> $PSVersionTable.CLRVersion
Major Minor Build Revision
----- ----- ----- --------
4 0 30319 42000
You can download the latest version of the .NET Framework from Microsoft.NET.