Scott Hanselman. According to the Microsoft Support website: "Core isolation is a security feature of Microsoft Windows that protects important core processes of Windows from malicious software by isolating them in memory.
It does this by running those core processes in a virtualized environment. Memory integrity is one feature of core isolation which regularly verifies the integrity of the code running those core processes in an attempt to prevent any attacks from altering them. We recommend that you leave this setting on, if your system supports it. " Pat Shaughnessy. Avdi Grimm. Mislav Marohnić.