I was able to find the drivers by going into Settings and clicking
Windows Update
Advanced Options
Optional Updates
Driver Updates
I ran updates for all of them, rebooted, and still cannot enable Memory Integrity. Nor can I find the program to uninstall to remove them (I cannot delete. Systems says I need permission, even though I am logged in as administrator). If you are having the same issue, I will just have to wait for a resolution from Microsoft, and hope nothing happens in the meantime.