VS2013 Debug/Windows/Tasks: “No tasks to display”

Question

I have Visual Studio Professional 2013 and I am debugging an application which uses async/await extensively. But when I stop at breakpoint and open Debug/Windows/Tasks windo

Answer 1

From http://blogs.msdn.com/b/dotnet/archive/2013/06/26/announcing-the-net-framework-4-5-1-preview.aspx

In Windows 8.1 Preview, the OS has an understanding of asynchronous operations 
and the states that they can be in, which is then used by Visual Studio 2013 preview, 
in this new window [Tasks]

Given that @ScottChamberlain confirmed that Tasks window in Visual Studio works on Win8.1 and not on Win7, that seems to be the problem.