But it's funny that I tried to open Cortana from the Apps List in Start and only got the blank screen. And, wow, I just opened MS Word with Cortana! That's something I will use! I'm going back to see if I can open apps other than Microsoft.
For each new build here that means one of or both of two things! First the Dang Sound card's X-Fi Xtreme Audio Support Pack 1.2 has to keep being put back on and then after the restart check for the 1.5.1 update to get the software portion cleaned up each time.
And then of course you might just want a new look and feel for each OS change?
So far the only bug noticed was on one of the new VMs which ran into the file, folder renaming problem. I was still able to restart into it again and then able to name any new folder. As for the AMD/ATI issues nuke the present Catalyst and drivers and look up an earlier 8.1 flavor Catalyst suit. That should allow itself to update into a working newer fflavor over time and end up seeing fewer problems.