As you can read here I had some problems enabling Windows Core Isolation feature on my Ryzen 5 2500U system. Whenever I’ve enabled it, system failed to work in a way that graphics failed to work if I enabled it.
As it turns out, the reason for this was in outdated drivers. Combination of them. There was also BIOS update… But not the usual kind of driver update. I had all drivers installed, chipset and graphic from AMD. Also full Windows Update.
I had to update drivers using Snappy Driver Installer (make sure to create System Restore Point first if there are any problems) and after that, Core Isolation worked just fine. I’ve used SDI quite often before, but stopped. I guess I’m returning to using it regularly.