D10.4.1 / IW15.2.18 installation issue

[oystein.jakobsen@sas.no]

I'm using Windows Security Essentials (Win10 built-in) and Malwarebytes. I checked Malwarebytes logs, but could not find anything recently blocked. If you list the URL's requested, I may attempt a manual file download with chrome and see if it provides some more clues/error messages.