Disabled "Memory Usage" option in VS 2013 Ultimate

Question

I have installed Visual Studio 2013 Ultimate with Update 4. I create a project, compile it and start "Performance and Diagnostics" tool. When it starts the "Memory Usage" option is disabled. How can I enable it? Thanks.

Answer 1

Apparently, "Memory Usage" option is available only on Windows 8.1 systems. In my case, VS2013 runs on Windows 7.