Deleting KB2670838 did restore my 3D video icons. That work fine for a while.
Task Manager is now crippled for me and does not show what is running. Too bad that they broke what once worked.
I would like to have icons for my hundreds of 3D videos. That allows me to recognize and view the files that I use the computer for. Working without icons is difficult to say the least. I might have to run Linux for my demanding programs and to even view my video icons on a functional computer. My videos might have to be on a separate drive that is only plugged in when running Linux.
Microsoft simply does not support DIY 3D and is entirely indifferent to this issue. If they are tying to kill 3D and frustrate users they should continue to ignore us. They are already following that path.
If they want to drive serious computer users to Linux, then Microsoft should simply stay on their existing course of ignoring complaints for years at a time.