I have the same problem. Yesterday, when I ran the Service Studio 11 it worked, but today it doesn't work. It gives the same error. That the application requires version 4.72 of .NET Framework.
When I try to install that version of .NET Framework , or any other like the latest 4.8, it gives the error that says that it is not supported on this Operating System.
I don't see any windows updates installed lately.
Windows 10
What could be the problem and how we can fix it?