Slowness on Windows 10 after Windows Update KB4013429

Hey guys – we discussed this today and we are looking into it.

Unfortunately, we did some research and it seems like your theory is correct. People are having issues if they:

  • Install the Windows update you linked to above
  • Use the Intel HD4000 GPU
  • Use OpenGL-based applications like Roon (other similar reports here, here, and here)

By all appearances, this Microsoft update is causing issues for OpenGL. We are going to investigate, and if we can figure out a workaround, we will let everyone know.

If you guys want to experiment, the most obvious path would be try different graphics drivers, and perhaps an alternative one will perform better than the default one. There are also unofficial ways to prevent Windows from updating, and of course we can all hope that Microsoft rolls out a fix for this issue in a future update.

It would be good to confirm our understanding of the issue – @Pieter_Vroon, can confirm you’re machine also uses the Intel HD4000 GPU?