Check installed .NET version - Command line

Here is a quick and easy way to find the .NET versions installed on your machine.
This can be used on any machine either development or server machines.
In this method, the .NET framework installation directories are listed corresponding to the installed framework versions.
Use the command to list the framework versions.

dir %WINDIR%\Microsoft.Net\Framework\v*

For a more polished output use the below command.

dir %WINDIR%\Microsoft.Net\Framework\v* /O:-N /B