Hi Graham,
I can confirm that you're processor is vPro enabled. For future reference, you can go to http://ark.intel.com to check for this type of information. Yours is here: http://ark.intel.com/products/80815/Intel-Core-i5-4590-Processor-6M-Cache-up-to-3_70-GHz
Saw this in the log:
2017-02-22 13:31:44: Thread:8092(DETAIL) : ACU Configurator , Category: AMT Status Source: ACUDll.cpp : GetHostAndMEInfo Line: 4296: This system does not have Intel(R) AMT (or it is disabled in the Intel MEBX, or the correct drivers are not installed or enabled, or the current user does not have permissions to the drivers). (0xc0000063)
On power up, hit CTRL-F6 to enter MebX to enable it and try it again.
Michael