Hi again ohfer , sorry for the delay but I've been working extremely hard over the weekend , thankfully I'm now on my rest days.
I've had problems with previous updates related to net framework , which i could only resolve by re-installing the net framework itself and then downloading the updates. We may have to go down that road but it may be worth trying a direct download of the update first .
Try downloading from here
and choose the option "" Run this program from its current location ".