The KB5066835 Windows Update, left untreated, sliced AC Shadows frame-rates from 33 percent to over 50 percent. Determining exactly which other games have been affected is not easy or obvious, mostly because Nvidia has opted not to broadcast its own findings for us to test and confirm

But this scenario certainly has us scratching our heads as far as what kind of testing regimen and communication with GPU makers take place on at Microsoft these days. Did Microsoft’s October update expose a huge flaw in GPU drivers that OEMs needed to fix? If so, why was Microsoft unable to steward that information more responsibly to companies like AMD and Nvidia with weeks of woeful performance existing in the wild?

It doesn’t seem realistic to me for testing to include every possible hardware configuration with every single piece software in existence, let alone varying levels of function within those software.