I am a bit confused.
When you said "changing the Codec settings from one to another " I thought you meant the kind of change I refered to in my last post, but you indicate after that that you prefer all set to "Software", which was already set.
Is it some other codec settings that I ought to change.
After my change to DXVA I found the decode would run to 9% and never get any further. This happens consistently on every attempt. It does use half the cpu however, which I found encouraging. With "Software" setting its up around 95 - 98%